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Finding the Fourth Proportional to 22,177.50, 30,604.96 and 12,241.50

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Solution

The fourth proportional to 22,177.50, 30,604.96 and 12,241.50 is: 16,893.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,177.50 : 30,604.96 = 12,241.50 : x
  2. Step 2: Convert to fraction form
    22,177.50/30,604.96 = 12,241.50/x
  3. Step 3: Cross multiply
    22,177.50x = 30,604.96 × 12,241.50
  4. Step 4: Simplify right side
    22,177.50x = 374,650,617.84
  5. Step 5: Solve for x
    x = 374,650,617.84/22,177.50
  6. Step 6: Final answer
    x = 16,893.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.