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Finding the Fourth Proportional to 2,211.39, 3,317.39 and 750.15

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Solution

The fourth proportional to 2,211.39, 3,317.39 and 750.15 is: 1,125.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,211.39 : 3,317.39 = 750.15 : x
  2. Step 2: Convert to fraction form
    2,211.39/3,317.39 = 750.15/x
  3. Step 3: Cross multiply
    2,211.39x = 3,317.39 × 750.15
  4. Step 4: Simplify right side
    2,211.39x = 2,488,536.36
  5. Step 5: Solve for x
    x = 2,488,536.36/2,211.39
  6. Step 6: Final answer
    x = 1,125.33

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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.