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Finding the Fourth Proportional to 8,315.06, 12,472.58 and 4,849.88

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Solution

The fourth proportional to 8,315.06, 12,472.58 and 4,849.88 is: 7,274.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,315.06 : 12,472.58 = 4,849.88 : x
  2. Step 2: Convert to fraction form
    8,315.06/12,472.58 = 4,849.88/x
  3. Step 3: Cross multiply
    8,315.06x = 12,472.58 × 4,849.88
  4. Step 4: Simplify right side
    8,315.06x = 60,490,466.05
  5. Step 5: Solve for x
    x = 60,490,466.05/8,315.06
  6. Step 6: Final answer
    x = 7,274.81

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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.