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Finding the Fourth Proportional to 2,049.32, 3,072.13 and 750.48

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Solution

The fourth proportional to 2,049.32, 3,072.13 and 750.48 is: 1,125.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,049.32 : 3,072.13 = 750.48 : x
  2. Step 2: Convert to fraction form
    2,049.32/3,072.13 = 750.48/x
  3. Step 3: Cross multiply
    2,049.32x = 3,072.13 × 750.48
  4. Step 4: Simplify right side
    2,049.32x = 2,305,572.12
  5. Step 5: Solve for x
    x = 2,305,572.12/2,049.32
  6. Step 6: Final answer
    x = 1,125.04

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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.