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Finding the Fourth Proportional to 22,660.16, 33,990.24 and 7,079

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Solution

The fourth proportional to 22,660.16, 33,990.24 and 7,079 is: 10,618.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,660.16 : 33,990.24 = 7,079 : x
  2. Step 2: Convert to fraction form
    22,660.16/33,990.24 = 7,079/x
  3. Step 3: Cross multiply
    22,660.16x = 33,990.24 × 7,079
  4. Step 4: Simplify right side
    22,660.16x = 240,616,908.96
  5. Step 5: Solve for x
    x = 240,616,908.96/22,660.16
  6. Step 6: Final answer
    x = 10,618.50

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1.5x scale

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.