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Finding the Fourth Proportional to 40,291.76, 60,432.84 and 10,711.76

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Solution

The fourth proportional to 40,291.76, 60,432.84 and 10,711.76 is: 16,066.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,291.76 : 60,432.84 = 10,711.76 : x
  2. Step 2: Convert to fraction form
    40,291.76/60,432.84 = 10,711.76/x
  3. Step 3: Cross multiply
    40,291.76x = 60,432.84 × 10,711.76
  4. Step 4: Simplify right side
    40,291.76x = 647,342,078.20
  5. Step 5: Solve for x
    x = 647,342,078.20/40,291.76
  6. Step 6: Final answer
    x = 16,066.36

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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.