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Finding the Fourth Proportional to 17,808.54, 26,712.81 and 7,414.62

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Solution

The fourth proportional to 17,808.54, 26,712.81 and 7,414.62 is: 11,121.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,808.54 : 26,712.81 = 7,414.62 : x
  2. Step 2: Convert to fraction form
    17,808.54/26,712.81 = 7,414.62/x
  3. Step 3: Cross multiply
    17,808.54x = 26,712.81 × 7,414.62
  4. Step 4: Simplify right side
    17,808.54x = 198,065,335.28
  5. Step 5: Solve for x
    x = 198,065,335.28/17,808.54
  6. Step 6: Final answer
    x = 11,121.93

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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.