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Finding the Fourth Proportional to 22,237.60, 33,394.80 and 11,869.60

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Solution

The fourth proportional to 22,237.60, 33,394.80 and 11,869.60 is: 17,824.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,237.60 : 33,394.80 = 11,869.60 : x
  2. Step 2: Convert to fraction form
    22,237.60/33,394.80 = 11,869.60/x
  3. Step 3: Cross multiply
    22,237.60x = 33,394.80 × 11,869.60
  4. Step 4: Simplify right side
    22,237.60x = 396,382,918.08
  5. Step 5: Solve for x
    x = 396,382,918.08/22,237.60
  6. Step 6: Final answer
    x = 17,824.90

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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.