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Finding the Fourth Proportional to 49,587, 68,430.06 and 27,231

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Solution

The fourth proportional to 49,587, 68,430.06 and 27,231 is: 37,578.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,587 : 68,430.06 = 27,231 : x
  2. Step 2: Convert to fraction form
    49,587/68,430.06 = 27,231/x
  3. Step 3: Cross multiply
    49,587x = 68,430.06 × 27,231
  4. Step 4: Simplify right side
    49,587x = 1,863,418,963.86
  5. Step 5: Solve for x
    x = 1,863,418,963.86/49,587
  6. Step 6: Final answer
    x = 37,578.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.