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Finding the Fourth Proportional to 17,092.60, 25,638.90 and 11,187.70

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Solution

The fourth proportional to 17,092.60, 25,638.90 and 11,187.70 is: 16,781.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,092.60 : 25,638.90 = 11,187.70 : x
  2. Step 2: Convert to fraction form
    17,092.60/25,638.90 = 11,187.70/x
  3. Step 3: Cross multiply
    17,092.60x = 25,638.90 × 11,187.70
  4. Step 4: Simplify right side
    17,092.60x = 286,840,321.53
  5. Step 5: Solve for x
    x = 286,840,321.53/17,092.60
  6. Step 6: Final answer
    x = 16,781.55

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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.