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Finding the Fourth Proportional to 69,190.77, 103,800.75 and 22,440

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Solution

The fourth proportional to 69,190.77, 103,800.75 and 22,440 is: 33,664.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,190.77 : 103,800.75 = 22,440 : x
  2. Step 2: Convert to fraction form
    69,190.77/103,800.75 = 22,440/x
  3. Step 3: Cross multiply
    69,190.77x = 103,800.75 × 22,440
  4. Step 4: Simplify right side
    69,190.77x = 2,329,288,830
  5. Step 5: Solve for x
    x = 2,329,288,830/69,190.77
  6. Step 6: Final answer
    x = 33,664.73

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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.