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Finding the Fourth Proportional to 6,551.28, 8,989.92 and 5,957.28

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Solution

The fourth proportional to 6,551.28, 8,989.92 and 5,957.28 is: 8,174.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,551.28 : 8,989.92 = 5,957.28 : x
  2. Step 2: Convert to fraction form
    6,551.28/8,989.92 = 5,957.28/x
  3. Step 3: Cross multiply
    6,551.28x = 8,989.92 × 5,957.28
  4. Step 4: Simplify right side
    6,551.28x = 53,555,470.62
  5. Step 5: Solve for x
    x = 53,555,470.62/6,551.28
  6. Step 6: Final answer
    x = 8,174.81

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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.