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Finding the Fourth Proportional to 2,177.23, 3,265.48 and 716.39

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Solution

The fourth proportional to 2,177.23, 3,265.48 and 716.39 is: 1,074.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,177.23 : 3,265.48 = 716.39 : x
  2. Step 2: Convert to fraction form
    2,177.23/3,265.48 = 716.39/x
  3. Step 3: Cross multiply
    2,177.23x = 3,265.48 × 716.39
  4. Step 4: Simplify right side
    2,177.23x = 2,339,353.64
  5. Step 5: Solve for x
    x = 2,339,353.64/2,177.23
  6. Step 6: Final answer
    x = 1,074.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.