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Finding the Fourth Proportional to 49,662.88, 74,541.13 and 18,103.44

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Solution

The fourth proportional to 49,662.88, 74,541.13 and 18,103.44 is: 27,172.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,662.88 : 74,541.13 = 18,103.44 : x
  2. Step 2: Convert to fraction form
    49,662.88/74,541.13 = 18,103.44/x
  3. Step 3: Cross multiply
    49,662.88x = 74,541.13 × 18,103.44
  4. Step 4: Simplify right side
    49,662.88x = 1,349,450,642.88
  5. Step 5: Solve for x
    x = 1,349,450,642.88/49,662.88
  6. Step 6: Final answer
    x = 27,172.22

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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.