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Finding the Fourth Proportional to 75,940.56, 113,980.23 and 38,526.39

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Solution

The fourth proportional to 75,940.56, 113,980.23 and 38,526.39 is: 57,824.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,940.56 : 113,980.23 = 38,526.39 : x
  2. Step 2: Convert to fraction form
    75,940.56/113,980.23 = 38,526.39/x
  3. Step 3: Cross multiply
    75,940.56x = 113,980.23 × 38,526.39
  4. Step 4: Simplify right side
    75,940.56x = 4,391,246,793.27
  5. Step 5: Solve for x
    x = 4,391,246,793.27/75,940.56
  6. Step 6: Final answer
    x = 57,824.79

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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.