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Finding the Fourth Proportional to 7,034.97, 9,708.22 and 4,202.20

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Solution

The fourth proportional to 7,034.97, 9,708.22 and 4,202.20 is: 5,799.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,034.97 : 9,708.22 = 4,202.20 : x
  2. Step 2: Convert to fraction form
    7,034.97/9,708.22 = 4,202.20/x
  3. Step 3: Cross multiply
    7,034.97x = 9,708.22 × 4,202.20
  4. Step 4: Simplify right side
    7,034.97x = 40,795,882.08
  5. Step 5: Solve for x
    x = 40,795,882.08/7,034.97
  6. Step 6: Final answer
    x = 5,799.01

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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.