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Finding the Fourth Proportional to 7,232.92, 9,979.14 and 4,247.80

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Solution

The fourth proportional to 7,232.92, 9,979.14 and 4,247.80 is: 5,860.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,232.92 : 9,979.14 = 4,247.80 : x
  2. Step 2: Convert to fraction form
    7,232.92/9,979.14 = 4,247.80/x
  3. Step 3: Cross multiply
    7,232.92x = 9,979.14 × 4,247.80
  4. Step 4: Simplify right side
    7,232.92x = 42,389,390.89
  5. Step 5: Solve for x
    x = 42,389,390.89/7,232.92
  6. Step 6: Final answer
    x = 5,860.62

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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.