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Finding the Fourth Proportional to 2,470.64, 3,706.49 and 739.13

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Solution

The fourth proportional to 2,470.64, 3,706.49 and 739.13 is: 1,108.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,470.64 : 3,706.49 = 739.13 : x
  2. Step 2: Convert to fraction form
    2,470.64/3,706.49 = 739.13/x
  3. Step 3: Cross multiply
    2,470.64x = 3,706.49 × 739.13
  4. Step 4: Simplify right side
    2,470.64x = 2,739,561.27
  5. Step 5: Solve for x
    x = 2,739,561.27/2,470.64
  6. Step 6: Final answer
    x = 1,108.85

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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.