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Finding the Fourth Proportional to 15,310.30, 22,963.30 and 4,777.88

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Solution

The fourth proportional to 15,310.30, 22,963.30 and 4,777.88 is: 7,166.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,310.30 : 22,963.30 = 4,777.88 : x
  2. Step 2: Convert to fraction form
    15,310.30/22,963.30 = 4,777.88/x
  3. Step 3: Cross multiply
    15,310.30x = 22,963.30 × 4,777.88
  4. Step 4: Simplify right side
    15,310.30x = 109,715,891.80
  5. Step 5: Solve for x
    x = 109,715,891.80/15,310.30
  6. Step 6: Final answer
    x = 7,166.15

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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.