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Finding the Fourth Proportional to 75,608.40, 113,412.60 and 25,744.80

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Solution

The fourth proportional to 75,608.40, 113,412.60 and 25,744.80 is: 38,617.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,608.40 : 113,412.60 = 25,744.80 : x
  2. Step 2: Convert to fraction form
    75,608.40/113,412.60 = 25,744.80/x
  3. Step 3: Cross multiply
    75,608.40x = 113,412.60 × 25,744.80
  4. Step 4: Simplify right side
    75,608.40x = 2,919,784,704.48
  5. Step 5: Solve for x
    x = 2,919,784,704.48/75,608.40
  6. Step 6: Final answer
    x = 38,617.20

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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.