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Finding the Fourth Proportional to 16,618.30, 24,919.11 and 5,521.10

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Solution

The fourth proportional to 16,618.30, 24,919.11 and 5,521.10 is: 8,278.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,618.30 : 24,919.11 = 5,521.10 : x
  2. Step 2: Convert to fraction form
    16,618.30/24,919.11 = 5,521.10/x
  3. Step 3: Cross multiply
    16,618.30x = 24,919.11 × 5,521.10
  4. Step 4: Simplify right side
    16,618.30x = 137,580,773.63
  5. Step 5: Solve for x
    x = 137,580,773.63/16,618.30
  6. Step 6: Final answer
    x = 8,278.87

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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.