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Finding the Fourth Proportional to 82,654.40, 123,986.40 and 23,494.40

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Solution

The fourth proportional to 82,654.40, 123,986.40 and 23,494.40 is: 35,242.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,654.40 : 123,986.40 = 23,494.40 : x
  2. Step 2: Convert to fraction form
    82,654.40/123,986.40 = 23,494.40/x
  3. Step 3: Cross multiply
    82,654.40x = 123,986.40 × 23,494.40
  4. Step 4: Simplify right side
    82,654.40x = 2,912,986,076.16
  5. Step 5: Solve for x
    x = 2,912,986,076.16/82,654.40
  6. Step 6: Final answer
    x = 35,242.96

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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.