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Finding the Fourth Proportional to 57,797.64, 86,695.65 and 18,354.15

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Solution

The fourth proportional to 57,797.64, 86,695.65 and 18,354.15 is: 27,530.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,797.64 : 86,695.65 = 18,354.15 : x
  2. Step 2: Convert to fraction form
    57,797.64/86,695.65 = 18,354.15/x
  3. Step 3: Cross multiply
    57,797.64x = 86,695.65 × 18,354.15
  4. Step 4: Simplify right side
    57,797.64x = 1,591,224,964.45
  5. Step 5: Solve for x
    x = 1,591,224,964.45/57,797.64
  6. Step 6: Final answer
    x = 27,530.97

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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.