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Finding the Fourth Proportional to 22,181, 33,275.46 and 7,390.76

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Solution

The fourth proportional to 22,181, 33,275.46 and 7,390.76 is: 11,087.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,181 : 33,275.46 = 7,390.76 : x
  2. Step 2: Convert to fraction form
    22,181/33,275.46 = 7,390.76/x
  3. Step 3: Cross multiply
    22,181x = 33,275.46 × 7,390.76
  4. Step 4: Simplify right side
    22,181x = 245,930,938.75
  5. Step 5: Solve for x
    x = 245,930,938.75/22,181
  6. Step 6: Final answer
    x = 11,087.46

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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.