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Finding the Fourth Proportional to 15,100.59, 20,848.68 and 9,810.48

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Solution

The fourth proportional to 15,100.59, 20,848.68 and 9,810.48 is: 13,544.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,100.59 : 20,848.68 = 9,810.48 : x
  2. Step 2: Convert to fraction form
    15,100.59/20,848.68 = 9,810.48/x
  3. Step 3: Cross multiply
    15,100.59x = 20,848.68 × 9,810.48
  4. Step 4: Simplify right side
    15,100.59x = 204,535,558.17
  5. Step 5: Solve for x
    x = 204,535,558.17/15,100.59
  6. Step 6: Final answer
    x = 13,544.87

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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.