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Finding the Fourth Proportional to 54,955.70, 82,433.55 and 25,431.20

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Solution

The fourth proportional to 54,955.70, 82,433.55 and 25,431.20 is: 38,146.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,955.70 : 82,433.55 = 25,431.20 : x
  2. Step 2: Convert to fraction form
    54,955.70/82,433.55 = 25,431.20/x
  3. Step 3: Cross multiply
    54,955.70x = 82,433.55 × 25,431.20
  4. Step 4: Simplify right side
    54,955.70x = 2,096,384,096.76
  5. Step 5: Solve for x
    x = 2,096,384,096.76/54,955.70
  6. Step 6: Final answer
    x = 38,146.80

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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.