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Finding the Fourth Proportional to 57,230.10, 85,845.15 and 25,640.10

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Solution

The fourth proportional to 57,230.10, 85,845.15 and 25,640.10 is: 38,460.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,230.10 : 85,845.15 = 25,640.10 : x
  2. Step 2: Convert to fraction form
    57,230.10/85,845.15 = 25,640.10/x
  3. Step 3: Cross multiply
    57,230.10x = 85,845.15 × 25,640.10
  4. Step 4: Simplify right side
    57,230.10x = 2,201,078,230.52
  5. Step 5: Solve for x
    x = 2,201,078,230.52/57,230.10
  6. Step 6: Final answer
    x = 38,460.15

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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.