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Finding the Fourth Proportional to 2,176.97, 3,266.01 and 716.14

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Solution

The fourth proportional to 2,176.97, 3,266.01 and 716.14 is: 1,074.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,176.97 : 3,266.01 = 716.14 : x
  2. Step 2: Convert to fraction form
    2,176.97/3,266.01 = 716.14/x
  3. Step 3: Cross multiply
    2,176.97x = 3,266.01 × 716.14
  4. Step 4: Simplify right side
    2,176.97x = 2,338,920.40
  5. Step 5: Solve for x
    x = 2,338,920.40/2,176.97
  6. Step 6: Final answer
    x = 1,074.39

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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.