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Finding the Fourth Proportional to 20,463.60, 30,630.60 and 16,057.20

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Solution

The fourth proportional to 20,463.60, 30,630.60 and 16,057.20 is: 24,034.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,463.60 : 30,630.60 = 16,057.20 : x
  2. Step 2: Convert to fraction form
    20,463.60/30,630.60 = 16,057.20/x
  3. Step 3: Cross multiply
    20,463.60x = 30,630.60 × 16,057.20
  4. Step 4: Simplify right side
    20,463.60x = 491,841,670.32
  5. Step 5: Solve for x
    x = 491,841,670.32/20,463.60
  6. Step 6: Final answer
    x = 24,034.95

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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.