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Finding the Fourth Proportional to 2,499.90, 3,745.17 and 2,091.66

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Solution

The fourth proportional to 2,499.90, 3,745.17 and 2,091.66 is: 3,133.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,499.90 : 3,745.17 = 2,091.66 : x
  2. Step 2: Convert to fraction form
    2,499.90/3,745.17 = 2,091.66/x
  3. Step 3: Cross multiply
    2,499.90x = 3,745.17 × 2,091.66
  4. Step 4: Simplify right side
    2,499.90x = 7,833,622.28
  5. Step 5: Solve for x
    x = 7,833,622.28/2,499.90
  6. Step 6: Final answer
    x = 3,133.57

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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.