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Finding the Fourth Proportional to 7,300.13, 10,950.18 and 2,918.61

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Solution

The fourth proportional to 7,300.13, 10,950.18 and 2,918.61 is: 4,377.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,300.13 : 10,950.18 = 2,918.61 : x
  2. Step 2: Convert to fraction form
    7,300.13/10,950.18 = 2,918.61/x
  3. Step 3: Cross multiply
    7,300.13x = 10,950.18 × 2,918.61
  4. Step 4: Simplify right side
    7,300.13x = 31,959,304.85
  5. Step 5: Solve for x
    x = 31,959,304.85/7,300.13
  6. Step 6: Final answer
    x = 4,377.91

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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.