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Finding the Fourth Proportional to 59,916.30, 82,711.01 and 38,705.90

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Solution

The fourth proportional to 59,916.30, 82,711.01 and 38,705.90 is: 53,431.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,916.30 : 82,711.01 = 38,705.90 : x
  2. Step 2: Convert to fraction form
    59,916.30/82,711.01 = 38,705.90/x
  3. Step 3: Cross multiply
    59,916.30x = 82,711.01 × 38,705.90
  4. Step 4: Simplify right side
    59,916.30x = 3,201,404,081.96
  5. Step 5: Solve for x
    x = 3,201,404,081.96/59,916.30
  6. Step 6: Final answer
    x = 53,431.27

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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.