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Finding the Fourth Proportional to 2,167.80, 3,252.34 and 706.92

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Solution

The fourth proportional to 2,167.80, 3,252.34 and 706.92 is: 1,060.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,167.80 : 3,252.34 = 706.92 : x
  2. Step 2: Convert to fraction form
    2,167.80/3,252.34 = 706.92/x
  3. Step 3: Cross multiply
    2,167.80x = 3,252.34 × 706.92
  4. Step 4: Simplify right side
    2,167.80x = 2,299,144.19
  5. Step 5: Solve for x
    x = 2,299,144.19/2,167.80
  6. Step 6: Final answer
    x = 1,060.59

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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.