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Finding the Fourth Proportional to 10,933.76, 15,062.22 and 8,694.92

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Solution

The fourth proportional to 10,933.76, 15,062.22 and 8,694.92 is: 11,978.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,933.76 : 15,062.22 = 8,694.92 : x
  2. Step 2: Convert to fraction form
    10,933.76/15,062.22 = 8,694.92/x
  3. Step 3: Cross multiply
    10,933.76x = 15,062.22 × 8,694.92
  4. Step 4: Simplify right side
    10,933.76x = 130,964,797.92
  5. Step 5: Solve for x
    x = 130,964,797.92/10,933.76
  6. Step 6: Final answer
    x = 11,978.02

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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.