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Finding the Fourth Proportional to 16,619.85, 24,908.99 and 8,302.20

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Solution

The fourth proportional to 16,619.85, 24,908.99 and 8,302.20 is: 12,442.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,619.85 : 24,908.99 = 8,302.20 : x
  2. Step 2: Convert to fraction form
    16,619.85/24,908.99 = 8,302.20/x
  3. Step 3: Cross multiply
    16,619.85x = 24,908.99 × 8,302.20
  4. Step 4: Simplify right side
    16,619.85x = 206,799,281.86
  5. Step 5: Solve for x
    x = 206,799,281.86/16,619.85
  6. Step 6: Final answer
    x = 12,442.91

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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.