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Finding the Fourth Proportional to 50,950.92, 76,401.80 and 21,360.81

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Solution

The fourth proportional to 50,950.92, 76,401.80 and 21,360.81 is: 32,030.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,950.92 : 76,401.80 = 21,360.81 : x
  2. Step 2: Convert to fraction form
    50,950.92/76,401.80 = 21,360.81/x
  3. Step 3: Cross multiply
    50,950.92x = 76,401.80 × 21,360.81
  4. Step 4: Simplify right side
    50,950.92x = 1,632,004,593.26
  5. Step 5: Solve for x
    x = 1,632,004,593.26/50,950.92
  6. Step 6: Final answer
    x = 32,030.91

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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.