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Finding the Fourth Proportional to 12,003.38, 16,560.04 and 7,519.32

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Solution

The fourth proportional to 12,003.38, 16,560.04 and 7,519.32 is: 10,373.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,003.38 : 16,560.04 = 7,519.32 : x
  2. Step 2: Convert to fraction form
    12,003.38/16,560.04 = 7,519.32/x
  3. Step 3: Cross multiply
    12,003.38x = 16,560.04 × 7,519.32
  4. Step 4: Simplify right side
    12,003.38x = 124,520,239.97
  5. Step 5: Solve for x
    x = 124,520,239.97/12,003.38
  6. Step 6: Final answer
    x = 10,373.76

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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.