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Finding the Fourth Proportional to 10,604.88, 15,907.31 and 5,987.88

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Solution

The fourth proportional to 10,604.88, 15,907.31 and 5,987.88 is: 8,981.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,604.88 : 15,907.31 = 5,987.88 : x
  2. Step 2: Convert to fraction form
    10,604.88/15,907.31 = 5,987.88/x
  3. Step 3: Cross multiply
    10,604.88x = 15,907.31 × 5,987.88
  4. Step 4: Simplify right side
    10,604.88x = 95,251,063.40
  5. Step 5: Solve for x
    x = 95,251,063.40/10,604.88
  6. Step 6: Final answer
    x = 8,981.81

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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.