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Finding the Fourth Proportional to 7,053.78, 10,581.90 and 2,123.73

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Solution

The fourth proportional to 7,053.78, 10,581.90 and 2,123.73 is: 3,185.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,053.78 : 10,581.90 = 2,123.73 : x
  2. Step 2: Convert to fraction form
    7,053.78/10,581.90 = 2,123.73/x
  3. Step 3: Cross multiply
    7,053.78x = 10,581.90 × 2,123.73
  4. Step 4: Simplify right side
    7,053.78x = 22,473,098.49
  5. Step 5: Solve for x
    x = 22,473,098.49/7,053.78
  6. Step 6: Final answer
    x = 3,185.97

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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.