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Finding the Fourth Proportional to 22,241.96, 30,694.62 and 12,681.68

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Solution

The fourth proportional to 22,241.96, 30,694.62 and 12,681.68 is: 17,501.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,241.96 : 30,694.62 = 12,681.68 : x
  2. Step 2: Convert to fraction form
    22,241.96/30,694.62 = 12,681.68/x
  3. Step 3: Cross multiply
    22,241.96x = 30,694.62 × 12,681.68
  4. Step 4: Simplify right side
    22,241.96x = 389,259,348.56
  5. Step 5: Solve for x
    x = 389,259,348.56/22,241.96
  6. Step 6: Final answer
    x = 17,501.13

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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.