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Finding the Fourth Proportional to 48,741.75, 73,113.03 and 11,805.75

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Solution

The fourth proportional to 48,741.75, 73,113.03 and 11,805.75 is: 17,708.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,741.75 : 73,113.03 = 11,805.75 : x
  2. Step 2: Convert to fraction form
    48,741.75/73,113.03 = 11,805.75/x
  3. Step 3: Cross multiply
    48,741.75x = 73,113.03 × 11,805.75
  4. Step 4: Simplify right side
    48,741.75x = 863,154,153.92
  5. Step 5: Solve for x
    x = 863,154,153.92/48,741.75
  6. Step 6: Final answer
    x = 17,708.72

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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.