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Finding the Fourth Proportional to 62,787.56, 86,646.87 and 34,495.07

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Solution

The fourth proportional to 62,787.56, 86,646.87 and 34,495.07 is: 47,603.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,787.56 : 86,646.87 = 34,495.07 : x
  2. Step 2: Convert to fraction form
    62,787.56/86,646.87 = 34,495.07/x
  3. Step 3: Cross multiply
    62,787.56x = 86,646.87 × 34,495.07
  4. Step 4: Simplify right side
    62,787.56x = 2,988,890,062.55
  5. Step 5: Solve for x
    x = 2,988,890,062.55/62,787.56
  6. Step 6: Final answer
    x = 47,603.22

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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.