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Finding the Fourth Proportional to 5,751.72, 7,934.90 and 3,625.57

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Solution

The fourth proportional to 5,751.72, 7,934.90 and 3,625.57 is: 5,001.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,751.72 : 7,934.90 = 3,625.57 : x
  2. Step 2: Convert to fraction form
    5,751.72/7,934.90 = 3,625.57/x
  3. Step 3: Cross multiply
    5,751.72x = 7,934.90 × 3,625.57
  4. Step 4: Simplify right side
    5,751.72x = 28,768,527.18
  5. Step 5: Solve for x
    x = 28,768,527.18/5,751.72
  6. Step 6: Final answer
    x = 5,001.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.