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Finding the Fourth Proportional to 17,129.40, 25,710.30 and 10,568.40

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Solution

The fourth proportional to 17,129.40, 25,710.30 and 10,568.40 is: 15,862.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,129.40 : 25,710.30 = 10,568.40 : x
  2. Step 2: Convert to fraction form
    17,129.40/25,710.30 = 10,568.40/x
  3. Step 3: Cross multiply
    17,129.40x = 25,710.30 × 10,568.40
  4. Step 4: Simplify right side
    17,129.40x = 271,716,734.52
  5. Step 5: Solve for x
    x = 271,716,734.52/17,129.40
  6. Step 6: Final answer
    x = 15,862.59

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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.