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Finding the Fourth Proportional to 54,305.98, 81,407.90 and 29,308.57

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Solution

The fourth proportional to 54,305.98, 81,407.90 and 29,308.57 is: 43,935.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,305.98 : 81,407.90 = 29,308.57 : x
  2. Step 2: Convert to fraction form
    54,305.98/81,407.90 = 29,308.57/x
  3. Step 3: Cross multiply
    54,305.98x = 81,407.90 × 29,308.57
  4. Step 4: Simplify right side
    54,305.98x = 2,385,948,989.16
  5. Step 5: Solve for x
    x = 2,385,948,989.16/54,305.98
  6. Step 6: Final answer
    x = 43,935.29

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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.