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Finding the Fourth Proportional to 74,654.60, 112,025.10 and 27,912.20

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Solution

The fourth proportional to 74,654.60, 112,025.10 and 27,912.20 is: 41,884.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,654.60 : 112,025.10 = 27,912.20 : x
  2. Step 2: Convert to fraction form
    74,654.60/112,025.10 = 27,912.20/x
  3. Step 3: Cross multiply
    74,654.60x = 112,025.10 × 27,912.20
  4. Step 4: Simplify right side
    74,654.60x = 3,126,866,996.22
  5. Step 5: Solve for x
    x = 3,126,866,996.22/74,654.60
  6. Step 6: Final answer
    x = 41,884.45

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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.