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Finding the Fourth Proportional to 57,339.70, 86,037.80 and 25,771.57

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Solution

The fourth proportional to 57,339.70, 86,037.80 and 25,771.57 is: 38,670.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,339.70 : 86,037.80 = 25,771.57 : x
  2. Step 2: Convert to fraction form
    57,339.70/86,037.80 = 25,771.57/x
  3. Step 3: Cross multiply
    57,339.70x = 86,037.80 × 25,771.57
  4. Step 4: Simplify right side
    57,339.70x = 2,217,328,841.39
  5. Step 5: Solve for x
    x = 2,217,328,841.39/57,339.70
  6. Step 6: Final answer
    x = 38,670.05

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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.