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Finding the Fourth Proportional to 22,422.61, 33,637.56 and 7,629.99

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Solution

The fourth proportional to 22,422.61, 33,637.56 and 7,629.99 is: 11,446.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,422.61 : 33,637.56 = 7,629.99 : x
  2. Step 2: Convert to fraction form
    22,422.61/33,637.56 = 7,629.99/x
  3. Step 3: Cross multiply
    22,422.61x = 33,637.56 × 7,629.99
  4. Step 4: Simplify right side
    22,422.61x = 256,654,246.42
  5. Step 5: Solve for x
    x = 256,654,246.42/22,422.61
  6. Step 6: Final answer
    x = 11,446.23

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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.