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Finding the Fourth Proportional to 48,750.85, 73,125.93 and 13,690.54

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Solution

The fourth proportional to 48,750.85, 73,125.93 and 13,690.54 is: 20,535.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,750.85 : 73,125.93 = 13,690.54 : x
  2. Step 2: Convert to fraction form
    48,750.85/73,125.93 = 13,690.54/x
  3. Step 3: Cross multiply
    48,750.85x = 73,125.93 × 13,690.54
  4. Step 4: Simplify right side
    48,750.85x = 1,001,133,469.70
  5. Step 5: Solve for x
    x = 1,001,133,469.70/48,750.85
  6. Step 6: Final answer
    x = 20,535.71

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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.