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Finding the Fourth Proportional to 57,449.40, 86,174.10 and 18,006.48

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Solution

The fourth proportional to 57,449.40, 86,174.10 and 18,006.48 is: 27,009.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,449.40 : 86,174.10 = 18,006.48 : x
  2. Step 2: Convert to fraction form
    57,449.40/86,174.10 = 18,006.48/x
  3. Step 3: Cross multiply
    57,449.40x = 86,174.10 × 18,006.48
  4. Step 4: Simplify right side
    57,449.40x = 1,551,692,208.17
  5. Step 5: Solve for x
    x = 1,551,692,208.17/57,449.40
  6. Step 6: Final answer
    x = 27,009.72

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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.