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Finding the Fourth Proportional to 8,731.66, 12,049.82 and 4,752.90

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Solution

The fourth proportional to 8,731.66, 12,049.82 and 4,752.90 is: 6,559.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,731.66 : 12,049.82 = 4,752.90 : x
  2. Step 2: Convert to fraction form
    8,731.66/12,049.82 = 4,752.90/x
  3. Step 3: Cross multiply
    8,731.66x = 12,049.82 × 4,752.90
  4. Step 4: Simplify right side
    8,731.66x = 57,271,505.46
  5. Step 5: Solve for x
    x = 57,271,505.46/8,731.66
  6. Step 6: Final answer
    x = 6,559.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.