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Finding the Fourth Proportional to 45,791.80, 68,687.70 and 14,630.20

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Solution

The fourth proportional to 45,791.80, 68,687.70 and 14,630.20 is: 21,945.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,791.80 : 68,687.70 = 14,630.20 : x
  2. Step 2: Convert to fraction form
    45,791.80/68,687.70 = 14,630.20/x
  3. Step 3: Cross multiply
    45,791.80x = 68,687.70 × 14,630.20
  4. Step 4: Simplify right side
    45,791.80x = 1,004,914,788.54
  5. Step 5: Solve for x
    x = 1,004,914,788.54/45,791.80
  6. Step 6: Final answer
    x = 21,945.30

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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.