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Finding the Fourth Proportional to 60,628.30, 90,942.45 and 57,906.70

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Solution

The fourth proportional to 60,628.30, 90,942.45 and 57,906.70 is: 86,860.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,628.30 : 90,942.45 = 57,906.70 : x
  2. Step 2: Convert to fraction form
    60,628.30/90,942.45 = 57,906.70/x
  3. Step 3: Cross multiply
    60,628.30x = 90,942.45 × 57,906.70
  4. Step 4: Simplify right side
    60,628.30x = 5,266,177,169.42
  5. Step 5: Solve for x
    x = 5,266,177,169.42/60,628.30
  6. Step 6: Final answer
    x = 86,860.05

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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.