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Finding the Fourth Proportional to 2,991.33, 4,488.12 and 1,451.25

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Solution

The fourth proportional to 2,991.33, 4,488.12 and 1,451.25 is: 2,177.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,991.33 : 4,488.12 = 1,451.25 : x
  2. Step 2: Convert to fraction form
    2,991.33/4,488.12 = 1,451.25/x
  3. Step 3: Cross multiply
    2,991.33x = 4,488.12 × 1,451.25
  4. Step 4: Simplify right side
    2,991.33x = 6,513,384.15
  5. Step 5: Solve for x
    x = 6,513,384.15/2,991.33
  6. Step 6: Final answer
    x = 2,177.42

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