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Finding the Fourth Proportional to 12,626.87, 17,414.87 and 11,111.18

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Solution

The fourth proportional to 12,626.87, 17,414.87 and 11,111.18 is: 15,324.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,626.87 : 17,414.87 = 11,111.18 : x
  2. Step 2: Convert to fraction form
    12,626.87/17,414.87 = 11,111.18/x
  3. Step 3: Cross multiply
    12,626.87x = 17,414.87 × 11,111.18
  4. Step 4: Simplify right side
    12,626.87x = 193,499,612.62
  5. Step 5: Solve for x
    x = 193,499,612.62/12,626.87
  6. Step 6: Final answer
    x = 15,324.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.