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Finding the Fourth Proportional to 43,935.70, 65,891.11 and 21,762.22

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Solution

The fourth proportional to 43,935.70, 65,891.11 and 21,762.22 is: 32,637.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,935.70 : 65,891.11 = 21,762.22 : x
  2. Step 2: Convert to fraction form
    43,935.70/65,891.11 = 21,762.22/x
  3. Step 3: Cross multiply
    43,935.70x = 65,891.11 × 21,762.22
  4. Step 4: Simplify right side
    43,935.70x = 1,433,936,831.86
  5. Step 5: Solve for x
    x = 1,433,936,831.86/43,935.70
  6. Step 6: Final answer
    x = 32,637.17

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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.