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Finding the Fourth Proportional to 7,016.92, 9,679.08 and 4,182.43

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Solution

The fourth proportional to 7,016.92, 9,679.08 and 4,182.43 is: 5,769.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,016.92 : 9,679.08 = 4,182.43 : x
  2. Step 2: Convert to fraction form
    7,016.92/9,679.08 = 4,182.43/x
  3. Step 3: Cross multiply
    7,016.92x = 9,679.08 × 4,182.43
  4. Step 4: Simplify right side
    7,016.92x = 40,482,074.56
  5. Step 5: Solve for x
    x = 40,482,074.56/7,016.92
  6. Step 6: Final answer
    x = 5,769.21

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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.