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Finding the Fourth Proportional to 24,491.60, 36,737.40 and 20,409.20

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Solution

The fourth proportional to 24,491.60, 36,737.40 and 20,409.20 is: 30,613.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,491.60 : 36,737.40 = 20,409.20 : x
  2. Step 2: Convert to fraction form
    24,491.60/36,737.40 = 20,409.20/x
  3. Step 3: Cross multiply
    24,491.60x = 36,737.40 × 20,409.20
  4. Step 4: Simplify right side
    24,491.60x = 749,780,944.08
  5. Step 5: Solve for x
    x = 749,780,944.08/24,491.60
  6. Step 6: Final answer
    x = 30,613.80

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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.