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Finding the Fourth Proportional to 28,177.70, 38,882.50 and 16,844.92

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Solution

The fourth proportional to 28,177.70, 38,882.50 and 16,844.92 is: 23,244.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,177.70 : 38,882.50 = 16,844.92 : x
  2. Step 2: Convert to fraction form
    28,177.70/38,882.50 = 16,844.92/x
  3. Step 3: Cross multiply
    28,177.70x = 38,882.50 × 16,844.92
  4. Step 4: Simplify right side
    28,177.70x = 654,972,462.58
  5. Step 5: Solve for x
    x = 654,972,462.58/28,177.70
  6. Step 6: Final answer
    x = 23,244.36

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Double scale
Find fourth proportional to 28,178.70, 38,883.88 and 16,845.92
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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.