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Finding the Fourth Proportional to 6,912.45, 9,472.73 and 6,248.16

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Solution

The fourth proportional to 6,912.45, 9,472.73 and 6,248.16 is: 8,562.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,912.45 : 9,472.73 = 6,248.16 : x
  2. Step 2: Convert to fraction form
    6,912.45/9,472.73 = 6,248.16/x
  3. Step 3: Cross multiply
    6,912.45x = 9,472.73 × 6,248.16
  4. Step 4: Simplify right side
    6,912.45x = 59,187,101.44
  5. Step 5: Solve for x
    x = 59,187,101.44/6,912.45
  6. Step 6: Final answer
    x = 8,562.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.