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Finding the Fourth Proportional to 80,752.80, 121,129.20 and 24,592.80

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Solution

The fourth proportional to 80,752.80, 121,129.20 and 24,592.80 is: 36,889.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,752.80 : 121,129.20 = 24,592.80 : x
  2. Step 2: Convert to fraction form
    80,752.80/121,129.20 = 24,592.80/x
  3. Step 3: Cross multiply
    80,752.80x = 121,129.20 × 24,592.80
  4. Step 4: Simplify right side
    80,752.80x = 2,978,906,189.76
  5. Step 5: Solve for x
    x = 2,978,906,189.76/80,752.80
  6. Step 6: Final answer
    x = 36,889.20

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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.