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Finding the Fourth Proportional to 43,286.10, 64,932.03 and 15,202.74

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Solution

The fourth proportional to 43,286.10, 64,932.03 and 15,202.74 is: 22,805.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,286.10 : 64,932.03 = 15,202.74 : x
  2. Step 2: Convert to fraction form
    43,286.10/64,932.03 = 15,202.74/x
  3. Step 3: Cross multiply
    43,286.10x = 64,932.03 × 15,202.74
  4. Step 4: Simplify right side
    43,286.10x = 987,144,769.76
  5. Step 5: Solve for x
    x = 987,144,769.76/43,286.10
  6. Step 6: Final answer
    x = 22,805.12

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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.