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Finding the Fourth Proportional to 25,381.31, 38,071.97 and 6,913.31

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Solution

The fourth proportional to 25,381.31, 38,071.97 and 6,913.31 is: 10,369.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,381.31 : 38,071.97 = 6,913.31 : x
  2. Step 2: Convert to fraction form
    25,381.31/38,071.97 = 6,913.31/x
  3. Step 3: Cross multiply
    25,381.31x = 38,071.97 × 6,913.31
  4. Step 4: Simplify right side
    25,381.31x = 263,203,443.38
  5. Step 5: Solve for x
    x = 263,203,443.38/25,381.31
  6. Step 6: Final answer
    x = 10,369.97

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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.