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Finding the Fourth Proportional to 54,772.65, 81,675.73 and 52,821.26

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Solution

The fourth proportional to 54,772.65, 81,675.73 and 52,821.26 is: 78,765.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,772.65 : 81,675.73 = 52,821.26 : x
  2. Step 2: Convert to fraction form
    54,772.65/81,675.73 = 52,821.26/x
  3. Step 3: Cross multiply
    54,772.65x = 81,675.73 × 52,821.26
  4. Step 4: Simplify right side
    54,772.65x = 4,314,215,042.16
  5. Step 5: Solve for x
    x = 4,314,215,042.16/54,772.65
  6. Step 6: Final answer
    x = 78,765.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.