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Finding the Fourth Proportional to 6,871.14, 9,482.13 and 3,886.97

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Solution

The fourth proportional to 6,871.14, 9,482.13 and 3,886.97 is: 5,363.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,871.14 : 9,482.13 = 3,886.97 : x
  2. Step 2: Convert to fraction form
    6,871.14/9,482.13 = 3,886.97/x
  3. Step 3: Cross multiply
    6,871.14x = 9,482.13 × 3,886.97
  4. Step 4: Simplify right side
    6,871.14x = 36,856,707.44
  5. Step 5: Solve for x
    x = 36,856,707.44/6,871.14
  6. Step 6: Final answer
    x = 5,363.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.