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Finding the Fourth Proportional to 8,859.97, 13,288.12 and 3,926.46

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Solution

The fourth proportional to 8,859.97, 13,288.12 and 3,926.46 is: 5,888.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,859.97 : 13,288.12 = 3,926.46 : x
  2. Step 2: Convert to fraction form
    8,859.97/13,288.12 = 3,926.46/x
  3. Step 3: Cross multiply
    8,859.97x = 13,288.12 × 3,926.46
  4. Step 4: Simplify right side
    8,859.97x = 52,175,185.58
  5. Step 5: Solve for x
    x = 52,175,185.58/8,859.97
  6. Step 6: Final answer
    x = 5,888.87

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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.