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Finding the Fourth Proportional to 7,422.48, 10,243.16 and 4,065.26

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Solution

The fourth proportional to 7,422.48, 10,243.16 and 4,065.26 is: 5,610.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,422.48 : 10,243.16 = 4,065.26 : x
  2. Step 2: Convert to fraction form
    7,422.48/10,243.16 = 4,065.26/x
  3. Step 3: Cross multiply
    7,422.48x = 10,243.16 × 4,065.26
  4. Step 4: Simplify right side
    7,422.48x = 41,641,037.08
  5. Step 5: Solve for x
    x = 41,641,037.08/7,422.48
  6. Step 6: Final answer
    x = 5,610.12

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