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Finding the Fourth Proportional to 2,706.48, 4,060.38 and 758.66

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Solution

The fourth proportional to 2,706.48, 4,060.38 and 758.66 is: 1,138.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,706.48 : 4,060.38 = 758.66 : x
  2. Step 2: Convert to fraction form
    2,706.48/4,060.38 = 758.66/x
  3. Step 3: Cross multiply
    2,706.48x = 4,060.38 × 758.66
  4. Step 4: Simplify right side
    2,706.48x = 3,080,447.89
  5. Step 5: Solve for x
    x = 3,080,447.89/2,706.48
  6. Step 6: Final answer
    x = 1,138.18

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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.