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Finding the Fourth Proportional to 22,635.49, 33,986.56 and 12,659.78

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Solution

The fourth proportional to 22,635.49, 33,986.56 and 12,659.78 is: 19,008.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,635.49 : 33,986.56 = 12,659.78 : x
  2. Step 2: Convert to fraction form
    22,635.49/33,986.56 = 12,659.78/x
  3. Step 3: Cross multiply
    22,635.49x = 33,986.56 × 12,659.78
  4. Step 4: Simplify right side
    22,635.49x = 430,262,325.08
  5. Step 5: Solve for x
    x = 430,262,325.08/22,635.49
  6. Step 6: Final answer
    x = 19,008.31

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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.