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Finding the Fourth Proportional to 48,750.81, 73,126.22 and 11,814.81

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Solution

The fourth proportional to 48,750.81, 73,126.22 and 11,814.81 is: 17,722.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,750.81 : 73,126.22 = 11,814.81 : x
  2. Step 2: Convert to fraction form
    48,750.81/73,126.22 = 11,814.81/x
  3. Step 3: Cross multiply
    48,750.81x = 73,126.22 × 11,814.81
  4. Step 4: Simplify right side
    48,750.81x = 863,972,578.13
  5. Step 5: Solve for x
    x = 863,972,578.13/48,750.81
  6. Step 6: Final answer
    x = 17,722.22

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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.