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Finding the Fourth Proportional to 8,718.62, 13,079.25 and 3,524.30

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Solution

The fourth proportional to 8,718.62, 13,079.25 and 3,524.30 is: 5,286.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,718.62 : 13,079.25 = 3,524.30 : x
  2. Step 2: Convert to fraction form
    8,718.62/13,079.25 = 3,524.30/x
  3. Step 3: Cross multiply
    8,718.62x = 13,079.25 × 3,524.30
  4. Step 4: Simplify right side
    8,718.62x = 46,095,200.78
  5. Step 5: Solve for x
    x = 46,095,200.78/8,718.62
  6. Step 6: Final answer
    x = 5,286.98

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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.