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Finding the Fourth Proportional to 60,772.80, 91,213.20 and 35,781.60

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Solution

The fourth proportional to 60,772.80, 91,213.20 and 35,781.60 is: 53,704.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,772.80 : 91,213.20 = 35,781.60 : x
  2. Step 2: Convert to fraction form
    60,772.80/91,213.20 = 35,781.60/x
  3. Step 3: Cross multiply
    60,772.80x = 91,213.20 × 35,781.60
  4. Step 4: Simplify right side
    60,772.80x = 3,263,754,237.12
  5. Step 5: Solve for x
    x = 3,263,754,237.12/60,772.80
  6. Step 6: Final answer
    x = 53,704.19

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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.