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Finding the Fourth Proportional to 62,658.92, 93,978.84 and 20,538.92

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Solution

The fourth proportional to 62,658.92, 93,978.84 and 20,538.92 is: 30,805.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,658.92 : 93,978.84 = 20,538.92 : x
  2. Step 2: Convert to fraction form
    62,658.92/93,978.84 = 20,538.92/x
  3. Step 3: Cross multiply
    62,658.92x = 93,978.84 × 20,538.92
  4. Step 4: Simplify right side
    62,658.92x = 1,930,223,876.45
  5. Step 5: Solve for x
    x = 1,930,223,876.45/62,658.92
  6. Step 6: Final answer
    x = 30,805.25

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1.5x scale

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.