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Finding the Fourth Proportional to 62,740.32, 86,578.92 and 34,446.48

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Solution

The fourth proportional to 62,740.32, 86,578.92 and 34,446.48 is: 47,534.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,740.32 : 86,578.92 = 34,446.48 : x
  2. Step 2: Convert to fraction form
    62,740.32/86,578.92 = 34,446.48/x
  3. Step 3: Cross multiply
    62,740.32x = 86,578.92 × 34,446.48
  4. Step 4: Simplify right side
    62,740.32x = 2,982,339,036.20
  5. Step 5: Solve for x
    x = 2,982,339,036.20/62,740.32
  6. Step 6: Final answer
    x = 47,534.65

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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.