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Finding the Fourth Proportional to 54,326.40, 81,489.60 and 23,157.60

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Solution

The fourth proportional to 54,326.40, 81,489.60 and 23,157.60 is: 34,736.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,326.40 : 81,489.60 = 23,157.60 : x
  2. Step 2: Convert to fraction form
    54,326.40/81,489.60 = 23,157.60/x
  3. Step 3: Cross multiply
    54,326.40x = 81,489.60 × 23,157.60
  4. Step 4: Simplify right side
    54,326.40x = 1,887,103,560.96
  5. Step 5: Solve for x
    x = 1,887,103,560.96/54,326.40
  6. Step 6: Final answer
    x = 34,736.40

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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.