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Finding the Fourth Proportional to 60,694.50, 91,097.90 and 30,729.80

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Solution

The fourth proportional to 60,694.50, 91,097.90 and 30,729.80 is: 46,123.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,694.50 : 91,097.90 = 30,729.80 : x
  2. Step 2: Convert to fraction form
    60,694.50/91,097.90 = 30,729.80/x
  3. Step 3: Cross multiply
    60,694.50x = 91,097.90 × 30,729.80
  4. Step 4: Simplify right side
    60,694.50x = 2,799,419,924.33
  5. Step 5: Solve for x
    x = 2,799,419,924.33/60,694.50
  6. Step 6: Final answer
    x = 46,123.13

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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.