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Finding the Fourth Proportional to 17,088.78, 25,633.17 and 15,585.42

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Solution

The fourth proportional to 17,088.78, 25,633.17 and 15,585.42 is: 23,378.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,088.78 : 25,633.17 = 15,585.42 : x
  2. Step 2: Convert to fraction form
    17,088.78/25,633.17 = 15,585.42/x
  3. Step 3: Cross multiply
    17,088.78x = 25,633.17 × 15,585.42
  4. Step 4: Simplify right side
    17,088.78x = 399,503,720.38
  5. Step 5: Solve for x
    x = 399,503,720.38/17,088.78
  6. Step 6: Final answer
    x = 23,378.13

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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.