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Finding the Fourth Proportional to 61,908.47, 92,876.03 and 19,213.06

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Solution

The fourth proportional to 61,908.47, 92,876.03 and 19,213.06 is: 28,823.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,908.47 : 92,876.03 = 19,213.06 : x
  2. Step 2: Convert to fraction form
    61,908.47/92,876.03 = 19,213.06/x
  3. Step 3: Cross multiply
    61,908.47x = 92,876.03 × 19,213.06
  4. Step 4: Simplify right side
    61,908.47x = 1,784,432,736.95
  5. Step 5: Solve for x
    x = 1,784,432,736.95/61,908.47
  6. Step 6: Final answer
    x = 28,823.73

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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.