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Finding the Fourth Proportional to 62,010.87, 85,470.92 and 47,470.05

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Solution

The fourth proportional to 62,010.87, 85,470.92 and 47,470.05 is: 65,429.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,010.87 : 85,470.92 = 47,470.05 : x
  2. Step 2: Convert to fraction form
    62,010.87/85,470.92 = 47,470.05/x
  3. Step 3: Cross multiply
    62,010.87x = 85,470.92 × 47,470.05
  4. Step 4: Simplify right side
    62,010.87x = 4,057,308,920.12
  5. Step 5: Solve for x
    x = 4,057,308,920.12/62,010.87
  6. Step 6: Final answer
    x = 65,429.00

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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.