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Finding the Fourth Proportional to 16,553.87, 22,841.70 and 10,890.91

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Solution

The fourth proportional to 16,553.87, 22,841.70 and 10,890.91 is: 15,027.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,553.87 : 22,841.70 = 10,890.91 : x
  2. Step 2: Convert to fraction form
    16,553.87/22,841.70 = 10,890.91/x
  3. Step 3: Cross multiply
    16,553.87x = 22,841.70 × 10,890.91
  4. Step 4: Simplify right side
    16,553.87x = 248,766,758.17
  5. Step 5: Solve for x
    x = 248,766,758.17/16,553.87
  6. Step 6: Final answer
    x = 15,027.71

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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.