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Finding the Fourth Proportional to 8,656.26, 12,995.92 and 5,854.51

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Solution

The fourth proportional to 8,656.26, 12,995.92 and 5,854.51 is: 8,789.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,656.26 : 12,995.92 = 5,854.51 : x
  2. Step 2: Convert to fraction form
    8,656.26/12,995.92 = 5,854.51/x
  3. Step 3: Cross multiply
    8,656.26x = 12,995.92 × 5,854.51
  4. Step 4: Simplify right side
    8,656.26x = 76,084,743.60
  5. Step 5: Solve for x
    x = 76,084,743.60/8,656.26
  6. Step 6: Final answer
    x = 8,789.56

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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.