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Finding the Fourth Proportional to 16,490.57, 22,756.92 and 8,937.09

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Solution

The fourth proportional to 16,490.57, 22,756.92 and 8,937.09 is: 12,333.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,490.57 : 22,756.92 = 8,937.09 : x
  2. Step 2: Convert to fraction form
    16,490.57/22,756.92 = 8,937.09/x
  3. Step 3: Cross multiply
    16,490.57x = 22,756.92 × 8,937.09
  4. Step 4: Simplify right side
    16,490.57x = 203,380,642.16
  5. Step 5: Solve for x
    x = 203,380,642.16/16,490.57
  6. Step 6: Final answer
    x = 12,333.15

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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.