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Finding the Fourth Proportional to 58,398.49, 87,610.06 and 18,952.55

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Solution

The fourth proportional to 58,398.49, 87,610.06 and 18,952.55 is: 28,432.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,398.49 : 87,610.06 = 18,952.55 : x
  2. Step 2: Convert to fraction form
    58,398.49/87,610.06 = 18,952.55/x
  3. Step 3: Cross multiply
    58,398.49x = 87,610.06 × 18,952.55
  4. Step 4: Simplify right side
    58,398.49x = 1,660,433,850.22
  5. Step 5: Solve for x
    x = 1,660,433,850.22/58,398.49
  6. Step 6: Final answer
    x = 28,432.82

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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.