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Finding the Fourth Proportional to 49,781.70, 74,672.55 and 26,453.70

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Solution

The fourth proportional to 49,781.70, 74,672.55 and 26,453.70 is: 39,680.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,781.70 : 74,672.55 = 26,453.70 : x
  2. Step 2: Convert to fraction form
    49,781.70/74,672.55 = 26,453.70/x
  3. Step 3: Cross multiply
    49,781.70x = 74,672.55 × 26,453.70
  4. Step 4: Simplify right side
    49,781.70x = 1,975,365,235.94
  5. Step 5: Solve for x
    x = 1,975,365,235.94/49,781.70
  6. Step 6: Final answer
    x = 39,680.55

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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.