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Finding the Fourth Proportional to 22,176.64, 33,264.32 and 5,760.64

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Solution

The fourth proportional to 22,176.64, 33,264.32 and 5,760.64 is: 8,640.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,176.64 : 33,264.32 = 5,760.64 : x
  2. Step 2: Convert to fraction form
    22,176.64/33,264.32 = 5,760.64/x
  3. Step 3: Cross multiply
    22,176.64x = 33,264.32 × 5,760.64
  4. Step 4: Simplify right side
    22,176.64x = 191,623,772.36
  5. Step 5: Solve for x
    x = 191,623,772.36/22,176.64
  6. Step 6: Final answer
    x = 8,640.79

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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.