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Finding the Fourth Proportional to 59,658.62, 89,432.28 and 20,188.28

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Solution

The fourth proportional to 59,658.62, 89,432.28 and 20,188.28 is: 30,263.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,658.62 : 89,432.28 = 20,188.28 : x
  2. Step 2: Convert to fraction form
    59,658.62/89,432.28 = 20,188.28/x
  3. Step 3: Cross multiply
    59,658.62x = 89,432.28 × 20,188.28
  4. Step 4: Simplify right side
    59,658.62x = 1,805,483,909.68
  5. Step 5: Solve for x
    x = 1,805,483,909.68/59,658.62
  6. Step 6: Final answer
    x = 30,263.59

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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.