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Finding the Fourth Proportional to 69,403.40, 104,108.90 and 22,015.07

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Solution

The fourth proportional to 69,403.40, 104,108.90 and 22,015.07 is: 33,023.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,403.40 : 104,108.90 = 22,015.07 : x
  2. Step 2: Convert to fraction form
    69,403.40/104,108.90 = 22,015.07/x
  3. Step 3: Cross multiply
    69,403.40x = 104,108.90 × 22,015.07
  4. Step 4: Simplify right side
    69,403.40x = 2,291,964,721.12
  5. Step 5: Solve for x
    x = 2,291,964,721.12/69,403.40
  6. Step 6: Final answer
    x = 33,023.81

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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.