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Finding the Fourth Proportional to 7,882.79, 10,879.24 and 4,526.66

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Solution

The fourth proportional to 7,882.79, 10,879.24 and 4,526.66 is: 6,247.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,882.79 : 10,879.24 = 4,526.66 : x
  2. Step 2: Convert to fraction form
    7,882.79/10,879.24 = 4,526.66/x
  3. Step 3: Cross multiply
    7,882.79x = 10,879.24 × 4,526.66
  4. Step 4: Simplify right side
    7,882.79x = 49,246,620.54
  5. Step 5: Solve for x
    x = 49,246,620.54/7,882.79
  6. Step 6: Final answer
    x = 6,247.36

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1.5x scale

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.