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Finding the Fourth Proportional to 2,618.93, 3,920.97 and 2,372.58

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Solution

The fourth proportional to 2,618.93, 3,920.97 and 2,372.58 is: 3,552.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,618.93 : 3,920.97 = 2,372.58 : x
  2. Step 2: Convert to fraction form
    2,618.93/3,920.97 = 2,372.58/x
  3. Step 3: Cross multiply
    2,618.93x = 3,920.97 × 2,372.58
  4. Step 4: Simplify right side
    2,618.93x = 9,302,815.00
  5. Step 5: Solve for x
    x = 9,302,815.00/2,618.93
  6. Step 6: Final answer
    x = 3,552.14

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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.