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Finding the Fourth Proportional to 68,560.80, 94,614.60 and 40,266.96

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Solution

The fourth proportional to 68,560.80, 94,614.60 and 40,266.96 is: 55,568.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,560.80 : 94,614.60 = 40,266.96 : x
  2. Step 2: Convert to fraction form
    68,560.80/94,614.60 = 40,266.96/x
  3. Step 3: Cross multiply
    68,560.80x = 94,614.60 × 40,266.96
  4. Step 4: Simplify right side
    68,560.80x = 3,809,842,313.62
  5. Step 5: Solve for x
    x = 3,809,842,313.62/68,560.80
  6. Step 6: Final answer
    x = 55,568.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.