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Finding the Fourth Proportional to 24,661.20, 36,996.60 and 10,621.20

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Solution

The fourth proportional to 24,661.20, 36,996.60 and 10,621.20 is: 15,933.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,661.20 : 36,996.60 = 10,621.20 : x
  2. Step 2: Convert to fraction form
    24,661.20/36,996.60 = 10,621.20/x
  3. Step 3: Cross multiply
    24,661.20x = 36,996.60 × 10,621.20
  4. Step 4: Simplify right side
    24,661.20x = 392,948,287.92
  5. Step 5: Solve for x
    x = 392,948,287.92/24,661.20
  6. Step 6: Final answer
    x = 15,933.87

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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.