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Finding the Fourth Proportional to 22,294.68, 33,412.68 and 12,438.60

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Solution

The fourth proportional to 22,294.68, 33,412.68 and 12,438.60 is: 18,641.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,294.68 : 33,412.68 = 12,438.60 : x
  2. Step 2: Convert to fraction form
    22,294.68/33,412.68 = 12,438.60/x
  3. Step 3: Cross multiply
    22,294.68x = 33,412.68 × 12,438.60
  4. Step 4: Simplify right side
    22,294.68x = 415,606,961.45
  5. Step 5: Solve for x
    x = 415,606,961.45/22,294.68
  6. Step 6: Final answer
    x = 18,641.53

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1.5x scale

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.