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Finding the Fourth Proportional to 27,838.31, 41,759.90 and 7,061.81

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Solution

The fourth proportional to 27,838.31, 41,759.90 and 7,061.81 is: 10,593.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,838.31 : 41,759.90 = 7,061.81 : x
  2. Step 2: Convert to fraction form
    27,838.31/41,759.90 = 7,061.81/x
  3. Step 3: Cross multiply
    27,838.31x = 41,759.90 × 7,061.81
  4. Step 4: Simplify right side
    27,838.31x = 294,900,601.47
  5. Step 5: Solve for x
    x = 294,900,601.47/27,838.31
  6. Step 6: Final answer
    x = 10,593.34

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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.