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Finding the Fourth Proportional to 16,449.76, 22,701.20 and 8,997.76

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Solution

The fourth proportional to 16,449.76, 22,701.20 and 8,997.76 is: 12,417.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,449.76 : 22,701.20 = 8,997.76 : x
  2. Step 2: Convert to fraction form
    16,449.76/22,701.20 = 8,997.76/x
  3. Step 3: Cross multiply
    16,449.76x = 22,701.20 × 8,997.76
  4. Step 4: Simplify right side
    16,449.76x = 204,259,949.31
  5. Step 5: Solve for x
    x = 204,259,949.31/16,449.76
  6. Step 6: Final answer
    x = 12,417.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.