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Finding the Fourth Proportional to 66,669.86, 100,009.94 and 22,296.80

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Solution

The fourth proportional to 66,669.86, 100,009.94 and 22,296.80 is: 33,446.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,669.86 : 100,009.94 = 22,296.80 : x
  2. Step 2: Convert to fraction form
    66,669.86/100,009.94 = 22,296.80/x
  3. Step 3: Cross multiply
    66,669.86x = 100,009.94 × 22,296.80
  4. Step 4: Simplify right side
    66,669.86x = 2,229,901,630.19
  5. Step 5: Solve for x
    x = 2,229,901,630.19/66,669.86
  6. Step 6: Final answer
    x = 33,446.92

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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.