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Finding the Fourth Proportional to 2,248.12, 3,372.06 and 709

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Solution

The fourth proportional to 2,248.12, 3,372.06 and 709 is: 1,063.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,248.12 : 3,372.06 = 709 : x
  2. Step 2: Convert to fraction form
    2,248.12/3,372.06 = 709/x
  3. Step 3: Cross multiply
    2,248.12x = 3,372.06 × 709
  4. Step 4: Simplify right side
    2,248.12x = 2,390,790.54
  5. Step 5: Solve for x
    x = 2,390,790.54/2,248.12
  6. Step 6: Final answer
    x = 1,063.46

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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.