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Finding the Fourth Proportional to 74,625.80, 111,938.70 and 25,377.80

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Solution

The fourth proportional to 74,625.80, 111,938.70 and 25,377.80 is: 38,066.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,625.80 : 111,938.70 = 25,377.80 : x
  2. Step 2: Convert to fraction form
    74,625.80/111,938.70 = 25,377.80/x
  3. Step 3: Cross multiply
    74,625.80x = 111,938.70 × 25,377.80
  4. Step 4: Simplify right side
    74,625.80x = 2,840,757,940.86
  5. Step 5: Solve for x
    x = 2,840,757,940.86/74,625.80
  6. Step 6: Final answer
    x = 38,066.70

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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.