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Finding the Fourth Proportional to 10,593.12, 15,889.80 and 3,666

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Solution

The fourth proportional to 10,593.12, 15,889.80 and 3,666 is: 5,499.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,593.12 : 15,889.80 = 3,666 : x
  2. Step 2: Convert to fraction form
    10,593.12/15,889.80 = 3,666/x
  3. Step 3: Cross multiply
    10,593.12x = 15,889.80 × 3,666
  4. Step 4: Simplify right side
    10,593.12x = 58,252,006.80
  5. Step 5: Solve for x
    x = 58,252,006.80/10,593.12
  6. Step 6: Final answer
    x = 5,499.04

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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.