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Finding the Fourth Proportional to 62,689.58, 86,463.32 and 43,569.12

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Solution

The fourth proportional to 62,689.58, 86,463.32 and 43,569.12 is: 60,091.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,689.58 : 86,463.32 = 43,569.12 : x
  2. Step 2: Convert to fraction form
    62,689.58/86,463.32 = 43,569.12/x
  3. Step 3: Cross multiply
    62,689.58x = 86,463.32 × 43,569.12
  4. Step 4: Simplify right side
    62,689.58x = 3,767,130,764.68
  5. Step 5: Solve for x
    x = 3,767,130,764.68/62,689.58
  6. Step 6: Final answer
    x = 60,091.82

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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.