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Finding the Fourth Proportional to 7,041.62, 10,553.30 and 2,876.87

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Solution

The fourth proportional to 7,041.62, 10,553.30 and 2,876.87 is: 4,311.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,041.62 : 10,553.30 = 2,876.87 : x
  2. Step 2: Convert to fraction form
    7,041.62/10,553.30 = 2,876.87/x
  3. Step 3: Cross multiply
    7,041.62x = 10,553.30 × 2,876.87
  4. Step 4: Simplify right side
    7,041.62x = 30,360,472.17
  5. Step 5: Solve for x
    x = 30,360,472.17/7,041.62
  6. Step 6: Final answer
    x = 4,311.57

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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.