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Finding the Fourth Proportional to 2,351.47, 3,527.05 and 708.18

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Solution

The fourth proportional to 2,351.47, 3,527.05 and 708.18 is: 1,062.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,351.47 : 3,527.05 = 708.18 : x
  2. Step 2: Convert to fraction form
    2,351.47/3,527.05 = 708.18/x
  3. Step 3: Cross multiply
    2,351.47x = 3,527.05 × 708.18
  4. Step 4: Simplify right side
    2,351.47x = 2,497,786.27
  5. Step 5: Solve for x
    x = 2,497,786.27/2,351.47
  6. Step 6: Final answer
    x = 1,062.22

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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.