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Finding the Fourth Proportional to 8,707.73, 13,057.20 and 4,265.75

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Solution

The fourth proportional to 8,707.73, 13,057.20 and 4,265.75 is: 6,396.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,707.73 : 13,057.20 = 4,265.75 : x
  2. Step 2: Convert to fraction form
    8,707.73/13,057.20 = 4,265.75/x
  3. Step 3: Cross multiply
    8,707.73x = 13,057.20 × 4,265.75
  4. Step 4: Simplify right side
    8,707.73x = 55,698,685.61
  5. Step 5: Solve for x
    x = 55,698,685.61/8,707.73
  6. Step 6: Final answer
    x = 6,396.47

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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.