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Finding the Fourth Proportional to 54,455.70, 81,683.55 and 34,481.10

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Solution

The fourth proportional to 54,455.70, 81,683.55 and 34,481.10 is: 51,721.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,455.70 : 81,683.55 = 34,481.10 : x
  2. Step 2: Convert to fraction form
    54,455.70/81,683.55 = 34,481.10/x
  3. Step 3: Cross multiply
    54,455.70x = 81,683.55 × 34,481.10
  4. Step 4: Simplify right side
    54,455.70x = 2,816,538,655.91
  5. Step 5: Solve for x
    x = 2,816,538,655.91/54,455.70
  6. Step 6: Final answer
    x = 51,721.65

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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.