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Finding the Fourth Proportional to 13,452.48, 18,568.08 and 8,736.48

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Solution

The fourth proportional to 13,452.48, 18,568.08 and 8,736.48 is: 12,058.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,452.48 : 18,568.08 = 8,736.48 : x
  2. Step 2: Convert to fraction form
    13,452.48/18,568.08 = 8,736.48/x
  3. Step 3: Cross multiply
    13,452.48x = 18,568.08 × 8,736.48
  4. Step 4: Simplify right side
    13,452.48x = 162,219,659.56
  5. Step 5: Solve for x
    x = 162,219,659.56/13,452.48
  6. Step 6: Final answer
    x = 12,058.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.