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Finding the Fourth Proportional to 62,786.88, 86,646.48 and 34,493.16

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Solution

The fourth proportional to 62,786.88, 86,646.48 and 34,493.16 is: 47,600.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,786.88 : 86,646.48 = 34,493.16 : x
  2. Step 2: Convert to fraction form
    62,786.88/86,646.48 = 34,493.16/x
  3. Step 3: Cross multiply
    62,786.88x = 86,646.48 × 34,493.16
  4. Step 4: Simplify right side
    62,786.88x = 2,988,710,898.08
  5. Step 5: Solve for x
    x = 2,988,710,898.08/62,786.88
  6. Step 6: Final answer
    x = 47,600.88

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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.