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Finding the Fourth Proportional to 16,959.92, 25,448.56 and 8,085.28

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Solution

The fourth proportional to 16,959.92, 25,448.56 and 8,085.28 is: 12,132.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,959.92 : 25,448.56 = 8,085.28 : x
  2. Step 2: Convert to fraction form
    16,959.92/25,448.56 = 8,085.28/x
  3. Step 3: Cross multiply
    16,959.92x = 25,448.56 × 8,085.28
  4. Step 4: Simplify right side
    16,959.92x = 205,758,733.20
  5. Step 5: Solve for x
    x = 205,758,733.20/16,959.92
  6. Step 6: Final answer
    x = 12,132.06

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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.