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Finding the Fourth Proportional to 34,174.80, 51,231.81 and 18,388.32

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Solution

The fourth proportional to 34,174.80, 51,231.81 and 18,388.32 is: 27,566.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,174.80 : 51,231.81 = 18,388.32 : x
  2. Step 2: Convert to fraction form
    34,174.80/51,231.81 = 18,388.32/x
  3. Step 3: Cross multiply
    34,174.80x = 51,231.81 × 18,388.32
  4. Step 4: Simplify right side
    34,174.80x = 942,066,916.46
  5. Step 5: Solve for x
    x = 942,066,916.46/34,174.80
  6. Step 6: Final answer
    x = 27,566.13

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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.