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Finding the Fourth Proportional to 57,454.80, 86,135.70 and 25,841.70

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Solution

The fourth proportional to 57,454.80, 86,135.70 and 25,841.70 is: 38,741.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,454.80 : 86,135.70 = 25,841.70 : x
  2. Step 2: Convert to fraction form
    57,454.80/86,135.70 = 25,841.70/x
  3. Step 3: Cross multiply
    57,454.80x = 86,135.70 × 25,841.70
  4. Step 4: Simplify right side
    57,454.80x = 2,225,892,918.69
  5. Step 5: Solve for x
    x = 2,225,892,918.69/57,454.80
  6. Step 6: Final answer
    x = 38,741.64

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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.