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Finding the Fourth Proportional to 2,167.86, 3,252.06 and 707.16

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Solution

The fourth proportional to 2,167.86, 3,252.06 and 707.16 is: 1,060.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,167.86 : 3,252.06 = 707.16 : x
  2. Step 2: Convert to fraction form
    2,167.86/3,252.06 = 707.16/x
  3. Step 3: Cross multiply
    2,167.86x = 3,252.06 × 707.16
  4. Step 4: Simplify right side
    2,167.86x = 2,299,726.75
  5. Step 5: Solve for x
    x = 2,299,726.75/2,167.86
  6. Step 6: Final answer
    x = 1,060.83

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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.