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Finding the Fourth Proportional to 69,663.90, 104,503.13 and 22,920.46

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Solution

The fourth proportional to 69,663.90, 104,503.13 and 22,920.46 is: 34,383.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,663.90 : 104,503.13 = 22,920.46 : x
  2. Step 2: Convert to fraction form
    69,663.90/104,503.13 = 22,920.46/x
  3. Step 3: Cross multiply
    69,663.90x = 104,503.13 × 22,920.46
  4. Step 4: Simplify right side
    69,663.90x = 2,395,259,811.04
  5. Step 5: Solve for x
    x = 2,395,259,811.04/69,663.90
  6. Step 6: Final answer
    x = 34,383.09

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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.