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Finding the Fourth Proportional to 57,235.20, 85,843.60 and 15,672.48

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Solution

The fourth proportional to 57,235.20, 85,843.60 and 15,672.48 is: 23,506.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,235.20 : 85,843.60 = 15,672.48 : x
  2. Step 2: Convert to fraction form
    57,235.20/85,843.60 = 15,672.48/x
  3. Step 3: Cross multiply
    57,235.20x = 85,843.60 × 15,672.48
  4. Step 4: Simplify right side
    57,235.20x = 1,345,382,104.13
  5. Step 5: Solve for x
    x = 1,345,382,104.13/57,235.20
  6. Step 6: Final answer
    x = 23,506.20

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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.