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Finding the Fourth Proportional to 7,488.41, 11,233.74 and 2,420.91

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Solution

The fourth proportional to 7,488.41, 11,233.74 and 2,420.91 is: 3,631.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,488.41 : 11,233.74 = 2,420.91 : x
  2. Step 2: Convert to fraction form
    7,488.41/11,233.74 = 2,420.91/x
  3. Step 3: Cross multiply
    7,488.41x = 11,233.74 × 2,420.91
  4. Step 4: Simplify right side
    7,488.41x = 27,195,805.23
  5. Step 5: Solve for x
    x = 27,195,805.23/7,488.41
  6. Step 6: Final answer
    x = 3,631.72

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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.