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Finding the Fourth Proportional to 62,801.53, 86,665.12 and 34,506.61

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Solution

The fourth proportional to 62,801.53, 86,665.12 and 34,506.61 is: 47,618.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,801.53 : 86,665.12 = 34,506.61 : x
  2. Step 2: Convert to fraction form
    62,801.53/86,665.12 = 34,506.61/x
  3. Step 3: Cross multiply
    62,801.53x = 86,665.12 × 34,506.61
  4. Step 4: Simplify right side
    62,801.53x = 2,990,519,496.44
  5. Step 5: Solve for x
    x = 2,990,519,496.44/62,801.53
  6. Step 6: Final answer
    x = 47,618.58

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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.