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Finding the Fourth Proportional to 16,549.20, 24,821.40 and 4,861.20

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Solution

The fourth proportional to 16,549.20, 24,821.40 and 4,861.20 is: 7,291.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,549.20 : 24,821.40 = 4,861.20 : x
  2. Step 2: Convert to fraction form
    16,549.20/24,821.40 = 4,861.20/x
  3. Step 3: Cross multiply
    16,549.20x = 24,821.40 × 4,861.20
  4. Step 4: Simplify right side
    16,549.20x = 120,661,789.68
  5. Step 5: Solve for x
    x = 120,661,789.68/16,549.20
  6. Step 6: Final answer
    x = 7,291.10

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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.