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Finding the Fourth Proportional to 40,576.59, 55,991.59 and 27,840.73

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Solution

The fourth proportional to 40,576.59, 55,991.59 and 27,840.73 is: 38,417.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,576.59 : 55,991.59 = 27,840.73 : x
  2. Step 2: Convert to fraction form
    40,576.59/55,991.59 = 27,840.73/x
  3. Step 3: Cross multiply
    40,576.59x = 55,991.59 × 27,840.73
  4. Step 4: Simplify right side
    40,576.59x = 1,558,846,739.46
  5. Step 5: Solve for x
    x = 1,558,846,739.46/40,576.59
  6. Step 6: Final answer
    x = 38,417.39

Related Problems

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Half scale
Find fourth proportional to 81,153.18, 111,983.18 and 55,681.46
Double scale
Find fourth proportional to 40,577.59, 55,992.97 and 27,841.73
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.