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Finding the Fourth Proportional to 49,388.56, 74,083.04 and 11,948.56

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Solution

The fourth proportional to 49,388.56, 74,083.04 and 11,948.56 is: 17,922.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,388.56 : 74,083.04 = 11,948.56 : x
  2. Step 2: Convert to fraction form
    49,388.56/74,083.04 = 11,948.56/x
  3. Step 3: Cross multiply
    49,388.56x = 74,083.04 × 11,948.56
  4. Step 4: Simplify right side
    49,388.56x = 885,185,648.42
  5. Step 5: Solve for x
    x = 885,185,648.42/49,388.56
  6. Step 6: Final answer
    x = 17,922.89

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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.