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Finding the Fourth Proportional to 58,003.68, 86,962.92 and 18,538.02

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Solution

The fourth proportional to 58,003.68, 86,962.92 and 18,538.02 is: 27,793.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,003.68 : 86,962.92 = 18,538.02 : x
  2. Step 2: Convert to fraction form
    58,003.68/86,962.92 = 18,538.02/x
  3. Step 3: Cross multiply
    58,003.68x = 86,962.92 × 18,538.02
  4. Step 4: Simplify right side
    58,003.68x = 1,612,120,350.22
  5. Step 5: Solve for x
    x = 1,612,120,350.22/58,003.68
  6. Step 6: Final answer
    x = 27,793.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.