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Finding the Fourth Proportional to 54,736.40, 82,104.60 and 40,912.40

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Solution

The fourth proportional to 54,736.40, 82,104.60 and 40,912.40 is: 61,368.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,736.40 : 82,104.60 = 40,912.40 : x
  2. Step 2: Convert to fraction form
    54,736.40/82,104.60 = 40,912.40/x
  3. Step 3: Cross multiply
    54,736.40x = 82,104.60 × 40,912.40
  4. Step 4: Simplify right side
    54,736.40x = 3,359,096,237.04
  5. Step 5: Solve for x
    x = 3,359,096,237.04/54,736.40
  6. Step 6: Final answer
    x = 61,368.60

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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.