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Finding the Fourth Proportional to 7,422.66, 10,243.17 and 4,065.42

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Solution

The fourth proportional to 7,422.66, 10,243.17 and 4,065.42 is: 5,610.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,422.66 : 10,243.17 = 4,065.42 : x
  2. Step 2: Convert to fraction form
    7,422.66/10,243.17 = 4,065.42/x
  3. Step 3: Cross multiply
    7,422.66x = 10,243.17 × 4,065.42
  4. Step 4: Simplify right side
    7,422.66x = 41,642,788.18
  5. Step 5: Solve for x
    x = 41,642,788.18/7,422.66
  6. Step 6: Final answer
    x = 5,610.22

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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.