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Finding the Fourth Proportional to 17,708.40, 26,579 and 8,949.48

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Solution

The fourth proportional to 17,708.40, 26,579 and 8,949.48 is: 13,432.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,708.40 : 26,579 = 8,949.48 : x
  2. Step 2: Convert to fraction form
    17,708.40/26,579 = 8,949.48/x
  3. Step 3: Cross multiply
    17,708.40x = 26,579 × 8,949.48
  4. Step 4: Simplify right side
    17,708.40x = 237,868,228.92
  5. Step 5: Solve for x
    x = 237,868,228.92/17,708.40
  6. Step 6: Final answer
    x = 13,432.51

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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.