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Finding the Fourth Proportional to 12,201.28, 18,301.95 and 2,967.28

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Solution

The fourth proportional to 12,201.28, 18,301.95 and 2,967.28 is: 4,450.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,201.28 : 18,301.95 = 2,967.28 : x
  2. Step 2: Convert to fraction form
    12,201.28/18,301.95 = 2,967.28/x
  3. Step 3: Cross multiply
    12,201.28x = 18,301.95 × 2,967.28
  4. Step 4: Simplify right side
    12,201.28x = 54,307,010.20
  5. Step 5: Solve for x
    x = 54,307,010.20/12,201.28
  6. Step 6: Final answer
    x = 4,450.93

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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.