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Finding the Fourth Proportional to 8,691.77, 13,055.45 and 5,734.46

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Solution

The fourth proportional to 8,691.77, 13,055.45 and 5,734.46 is: 8,613.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,691.77 : 13,055.45 = 5,734.46 : x
  2. Step 2: Convert to fraction form
    8,691.77/13,055.45 = 5,734.46/x
  3. Step 3: Cross multiply
    8,691.77x = 13,055.45 × 5,734.46
  4. Step 4: Simplify right side
    8,691.77x = 74,865,959.77
  5. Step 5: Solve for x
    x = 74,865,959.77/8,691.77
  6. Step 6: Final answer
    x = 8,613.43

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1.5x scale

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.