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Finding the Fourth Proportional to 54,608.53, 81,912.82 and 15,165.64

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Solution

The fourth proportional to 54,608.53, 81,912.82 and 15,165.64 is: 22,748.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,608.53 : 81,912.82 = 15,165.64 : x
  2. Step 2: Convert to fraction form
    54,608.53/81,912.82 = 15,165.64/x
  3. Step 3: Cross multiply
    54,608.53x = 81,912.82 × 15,165.64
  4. Step 4: Simplify right side
    54,608.53x = 1,242,259,929.94
  5. Step 5: Solve for x
    x = 1,242,259,929.94/54,608.53
  6. Step 6: Final answer
    x = 22,748.46

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Similar ratio
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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.