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Finding the Fourth Proportional to 17,104.60, 25,656.90 and 15,549.40

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Solution

The fourth proportional to 17,104.60, 25,656.90 and 15,549.40 is: 23,324.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,104.60 : 25,656.90 = 15,549.40 : x
  2. Step 2: Convert to fraction form
    17,104.60/25,656.90 = 15,549.40/x
  3. Step 3: Cross multiply
    17,104.60x = 25,656.90 × 15,549.40
  4. Step 4: Simplify right side
    17,104.60x = 398,949,400.86
  5. Step 5: Solve for x
    x = 398,949,400.86/17,104.60
  6. Step 6: Final answer
    x = 23,324.10

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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.