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Finding the Fourth Proportional to 2,042.97, 3,065.18 and 744.57

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Solution

The fourth proportional to 2,042.97, 3,065.18 and 744.57 is: 1,117.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,042.97 : 3,065.18 = 744.57 : x
  2. Step 2: Convert to fraction form
    2,042.97/3,065.18 = 744.57/x
  3. Step 3: Cross multiply
    2,042.97x = 3,065.18 × 744.57
  4. Step 4: Simplify right side
    2,042.97x = 2,282,237.35
  5. Step 5: Solve for x
    x = 2,282,237.35/2,042.97
  6. Step 6: Final answer
    x = 1,117.12

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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.