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Finding the Fourth Proportional to 16,708.92, 25,061.24 and 7,949.40

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Solution

The fourth proportional to 16,708.92, 25,061.24 and 7,949.40 is: 11,923.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,708.92 : 25,061.24 = 7,949.40 : x
  2. Step 2: Convert to fraction form
    16,708.92/25,061.24 = 7,949.40/x
  3. Step 3: Cross multiply
    16,708.92x = 25,061.24 × 7,949.40
  4. Step 4: Simplify right side
    16,708.92x = 199,221,821.26
  5. Step 5: Solve for x
    x = 199,221,821.26/16,708.92
  6. Step 6: Final answer
    x = 11,923.08

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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.