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Finding the Fourth Proportional to 31,544.80, 47,266.80 and 16,734.40

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Solution

The fourth proportional to 31,544.80, 47,266.80 and 16,734.40 is: 25,074.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,544.80 : 47,266.80 = 16,734.40 : x
  2. Step 2: Convert to fraction form
    31,544.80/47,266.80 = 16,734.40/x
  3. Step 3: Cross multiply
    31,544.80x = 47,266.80 × 16,734.40
  4. Step 4: Simplify right side
    31,544.80x = 790,981,537.92
  5. Step 5: Solve for x
    x = 790,981,537.92/31,544.80
  6. Step 6: Final answer
    x = 25,074.86

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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.