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Finding the Fourth Proportional to 16,959.91, 25,451.16 and 6,972.85

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Solution

The fourth proportional to 16,959.91, 25,451.16 and 6,972.85 is: 10,463.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,959.91 : 25,451.16 = 6,972.85 : x
  2. Step 2: Convert to fraction form
    16,959.91/25,451.16 = 6,972.85/x
  3. Step 3: Cross multiply
    16,959.91x = 25,451.16 × 6,972.85
  4. Step 4: Simplify right side
    16,959.91x = 177,467,121.01
  5. Step 5: Solve for x
    x = 177,467,121.01/16,959.91
  6. Step 6: Final answer
    x = 10,463.92

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1.5x scale

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.