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Finding the Fourth Proportional to 7,752.68, 11,625.24 and 3,859.28

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Solution

The fourth proportional to 7,752.68, 11,625.24 and 3,859.28 is: 5,787.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,752.68 : 11,625.24 = 3,859.28 : x
  2. Step 2: Convert to fraction form
    7,752.68/11,625.24 = 3,859.28/x
  3. Step 3: Cross multiply
    7,752.68x = 11,625.24 × 3,859.28
  4. Step 4: Simplify right side
    7,752.68x = 44,865,056.23
  5. Step 5: Solve for x
    x = 44,865,056.23/7,752.68
  6. Step 6: Final answer
    x = 5,787.04

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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.