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Finding the Fourth Proportional to 14,830.80, 22,213.80 and 11,517.90

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Solution

The fourth proportional to 14,830.80, 22,213.80 and 11,517.90 is: 17,251.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,830.80 : 22,213.80 = 11,517.90 : x
  2. Step 2: Convert to fraction form
    14,830.80/22,213.80 = 11,517.90/x
  3. Step 3: Cross multiply
    14,830.80x = 22,213.80 × 11,517.90
  4. Step 4: Simplify right side
    14,830.80x = 255,856,327.02
  5. Step 5: Solve for x
    x = 255,856,327.02/14,830.80
  6. Step 6: Final answer
    x = 17,251.69

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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.