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Finding the Fourth Proportional to 25,632, 38,429.28 and 17,291.28

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Solution

The fourth proportional to 25,632, 38,429.28 and 17,291.28 is: 25,924.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,632 : 38,429.28 = 17,291.28 : x
  2. Step 2: Convert to fraction form
    25,632/38,429.28 = 17,291.28/x
  3. Step 3: Cross multiply
    25,632x = 38,429.28 × 17,291.28
  4. Step 4: Simplify right side
    25,632x = 664,491,440.68
  5. Step 5: Solve for x
    x = 664,491,440.68/25,632
  6. Step 6: Final answer
    x = 25,924.29

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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.