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Finding the Fourth Proportional to 69,801.80, 104,651.66 and 22,389.90

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Solution

The fourth proportional to 69,801.80, 104,651.66 and 22,389.90 is: 33,568.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,801.80 : 104,651.66 = 22,389.90 : x
  2. Step 2: Convert to fraction form
    69,801.80/104,651.66 = 22,389.90/x
  3. Step 3: Cross multiply
    69,801.80x = 104,651.66 × 22,389.90
  4. Step 4: Simplify right side
    69,801.80x = 2,343,140,090.28
  5. Step 5: Solve for x
    x = 2,343,140,090.28/69,801.80
  6. Step 6: Final answer
    x = 33,568.48

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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.