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Finding the Fourth Proportional to 57,239.60, 85,859.40 and 25,649.60

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Solution

The fourth proportional to 57,239.60, 85,859.40 and 25,649.60 is: 38,474.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,239.60 : 85,859.40 = 25,649.60 : x
  2. Step 2: Convert to fraction form
    57,239.60/85,859.40 = 25,649.60/x
  3. Step 3: Cross multiply
    57,239.60x = 85,859.40 × 25,649.60
  4. Step 4: Simplify right side
    57,239.60x = 2,202,259,266.24
  5. Step 5: Solve for x
    x = 2,202,259,266.24/57,239.60
  6. Step 6: Final answer
    x = 38,474.40

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Similar ratio
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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.