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Finding the Fourth Proportional to 61,994.61, 92,940.17 and 28,738.53

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Solution

The fourth proportional to 61,994.61, 92,940.17 and 28,738.53 is: 43,083.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,994.61 : 92,940.17 = 28,738.53 : x
  2. Step 2: Convert to fraction form
    61,994.61/92,940.17 = 28,738.53/x
  3. Step 3: Cross multiply
    61,994.61x = 92,940.17 × 28,738.53
  4. Step 4: Simplify right side
    61,994.61x = 2,670,963,720.06
  5. Step 5: Solve for x
    x = 2,670,963,720.06/61,994.61
  6. Step 6: Final answer
    x = 43,083.81

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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.