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Finding the Fourth Proportional to 4,514.76, 6,772.14 and 1,915.88

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Solution

The fourth proportional to 4,514.76, 6,772.14 and 1,915.88 is: 2,873.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,514.76 : 6,772.14 = 1,915.88 : x
  2. Step 2: Convert to fraction form
    4,514.76/6,772.14 = 1,915.88/x
  3. Step 3: Cross multiply
    4,514.76x = 6,772.14 × 1,915.88
  4. Step 4: Simplify right side
    4,514.76x = 12,974,573.72
  5. Step 5: Solve for x
    x = 12,974,573.72/4,514.76
  6. Step 6: Final answer
    x = 2,873.81

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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.