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Finding the Fourth Proportional to 15,175.32, 22,763 and 4,787.88

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Solution

The fourth proportional to 15,175.32, 22,763 and 4,787.88 is: 7,181.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,175.32 : 22,763 = 4,787.88 : x
  2. Step 2: Convert to fraction form
    15,175.32/22,763 = 4,787.88/x
  3. Step 3: Cross multiply
    15,175.32x = 22,763 × 4,787.88
  4. Step 4: Simplify right side
    15,175.32x = 108,986,512.44
  5. Step 5: Solve for x
    x = 108,986,512.44/15,175.32
  6. Step 6: Final answer
    x = 7,181.83

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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.