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Finding the Fourth Proportional to 11,793.90, 17,690.85 and 9,893.10

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Solution

The fourth proportional to 11,793.90, 17,690.85 and 9,893.10 is: 14,839.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,793.90 : 17,690.85 = 9,893.10 : x
  2. Step 2: Convert to fraction form
    11,793.90/17,690.85 = 9,893.10/x
  3. Step 3: Cross multiply
    11,793.90x = 17,690.85 × 9,893.10
  4. Step 4: Simplify right side
    11,793.90x = 175,017,348.14
  5. Step 5: Solve for x
    x = 175,017,348.14/11,793.90
  6. Step 6: Final answer
    x = 14,839.65

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Similar ratio
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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.