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Finding the Fourth Proportional to 38,608.80, 57,934.80 and 16,418.40

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Solution

The fourth proportional to 38,608.80, 57,934.80 and 16,418.40 is: 24,636.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,608.80 : 57,934.80 = 16,418.40 : x
  2. Step 2: Convert to fraction form
    38,608.80/57,934.80 = 16,418.40/x
  3. Step 3: Cross multiply
    38,608.80x = 57,934.80 × 16,418.40
  4. Step 4: Simplify right side
    38,608.80x = 951,196,720.32
  5. Step 5: Solve for x
    x = 951,196,720.32/38,608.80
  6. Step 6: Final answer
    x = 24,636.79

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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.