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Finding the Fourth Proportional to 4,625.43, 6,945.43 and 3,655.86

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Solution

The fourth proportional to 4,625.43, 6,945.43 and 3,655.86 is: 5,489.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,625.43 : 6,945.43 = 3,655.86 : x
  2. Step 2: Convert to fraction form
    4,625.43/6,945.43 = 3,655.86/x
  3. Step 3: Cross multiply
    4,625.43x = 6,945.43 × 3,655.86
  4. Step 4: Simplify right side
    4,625.43x = 25,391,519.72
  5. Step 5: Solve for x
    x = 25,391,519.72/4,625.43
  6. Step 6: Final answer
    x = 5,489.55

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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.