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Finding the Fourth Proportional to 69,720.86, 104,582.37 and 22,344.86

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Solution

The fourth proportional to 69,720.86, 104,582.37 and 22,344.86 is: 33,517.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,720.86 : 104,582.37 = 22,344.86 : x
  2. Step 2: Convert to fraction form
    69,720.86/104,582.37 = 22,344.86/x
  3. Step 3: Cross multiply
    69,720.86x = 104,582.37 × 22,344.86
  4. Step 4: Simplify right side
    69,720.86x = 2,336,878,416.12
  5. Step 5: Solve for x
    x = 2,336,878,416.12/69,720.86
  6. Step 6: Final answer
    x = 33,517.64

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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.