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Finding the Fourth Proportional to 49,693.75, 74,541.02 and 18,126.43

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Solution

The fourth proportional to 49,693.75, 74,541.02 and 18,126.43 is: 27,189.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,693.75 : 74,541.02 = 18,126.43 : x
  2. Step 2: Convert to fraction form
    49,693.75/74,541.02 = 18,126.43/x
  3. Step 3: Cross multiply
    49,693.75x = 74,541.02 × 18,126.43
  4. Step 4: Simplify right side
    49,693.75x = 1,351,162,581.16
  5. Step 5: Solve for x
    x = 1,351,162,581.16/49,693.75
  6. Step 6: Final answer
    x = 27,189.79

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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.