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Finding the Fourth Proportional to 24,461.28, 36,691.92 and 6,931.20

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Solution

The fourth proportional to 24,461.28, 36,691.92 and 6,931.20 is: 10,396.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,461.28 : 36,691.92 = 6,931.20 : x
  2. Step 2: Convert to fraction form
    24,461.28/36,691.92 = 6,931.20/x
  3. Step 3: Cross multiply
    24,461.28x = 36,691.92 × 6,931.20
  4. Step 4: Simplify right side
    24,461.28x = 254,319,035.90
  5. Step 5: Solve for x
    x = 254,319,035.90/24,461.28
  6. Step 6: Final answer
    x = 10,396.80

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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.