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Finding the Fourth Proportional to 17,168.19, 25,708.28 and 14,388

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Solution

The fourth proportional to 17,168.19, 25,708.28 and 14,388 is: 21,545.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,168.19 : 25,708.28 = 14,388 : x
  2. Step 2: Convert to fraction form
    17,168.19/25,708.28 = 14,388/x
  3. Step 3: Cross multiply
    17,168.19x = 25,708.28 × 14,388
  4. Step 4: Simplify right side
    17,168.19x = 369,890,660.70
  5. Step 5: Solve for x
    x = 369,890,660.70/17,168.19
  6. Step 6: Final answer
    x = 21,545.12

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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.