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Finding the Fourth Proportional to 54,399.67, 81,522.92 and 43,256.90

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Solution

The fourth proportional to 54,399.67, 81,522.92 and 43,256.90 is: 64,824.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,399.67 : 81,522.92 = 43,256.90 : x
  2. Step 2: Convert to fraction form
    54,399.67/81,522.92 = 43,256.90/x
  3. Step 3: Cross multiply
    54,399.67x = 81,522.92 × 43,256.90
  4. Step 4: Simplify right side
    54,399.67x = 3,526,429,110.10
  5. Step 5: Solve for x
    x = 3,526,429,110.10/54,399.67
  6. Step 6: Final answer
    x = 64,824.46

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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.