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Finding the Fourth Proportional to 7,752.53, 11,620.51 and 3,587.69

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Solution

The fourth proportional to 7,752.53, 11,620.51 and 3,587.69 is: 5,377.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,752.53 : 11,620.51 = 3,587.69 : x
  2. Step 2: Convert to fraction form
    7,752.53/11,620.51 = 3,587.69/x
  3. Step 3: Cross multiply
    7,752.53x = 11,620.51 × 3,587.69
  4. Step 4: Simplify right side
    7,752.53x = 41,690,720.45
  5. Step 5: Solve for x
    x = 41,690,720.45/7,752.53
  6. Step 6: Final answer
    x = 5,377.70

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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.