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Finding the Fourth Proportional to 54,321.60, 81,433.80 and 35,610.60

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Solution

The fourth proportional to 54,321.60, 81,433.80 and 35,610.60 is: 53,384.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,321.60 : 81,433.80 = 35,610.60 : x
  2. Step 2: Convert to fraction form
    54,321.60/81,433.80 = 35,610.60/x
  3. Step 3: Cross multiply
    54,321.60x = 81,433.80 × 35,610.60
  4. Step 4: Simplify right side
    54,321.60x = 2,899,906,478.28
  5. Step 5: Solve for x
    x = 2,899,906,478.28/54,321.60
  6. Step 6: Final answer
    x = 53,384.04

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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.