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Finding the Fourth Proportional to 22,289.92, 33,393.88 and 13,968.38

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Solution

The fourth proportional to 22,289.92, 33,393.88 and 13,968.38 is: 20,926.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,289.92 : 33,393.88 = 13,968.38 : x
  2. Step 2: Convert to fraction form
    22,289.92/33,393.88 = 13,968.38/x
  3. Step 3: Cross multiply
    22,289.92x = 33,393.88 × 13,968.38
  4. Step 4: Simplify right side
    22,289.92x = 466,458,405.51
  5. Step 5: Solve for x
    x = 466,458,405.51/22,289.92
  6. Step 6: Final answer
    x = 20,926.88

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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.