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Finding the Fourth Proportional to 61,351.78, 92,029.71 and 16,974.81

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Solution

The fourth proportional to 61,351.78, 92,029.71 and 16,974.81 is: 25,462.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,351.78 : 92,029.71 = 16,974.81 : x
  2. Step 2: Convert to fraction form
    61,351.78/92,029.71 = 16,974.81/x
  3. Step 3: Cross multiply
    61,351.78x = 92,029.71 × 16,974.81
  4. Step 4: Simplify right side
    61,351.78x = 1,562,186,841.61
  5. Step 5: Solve for x
    x = 1,562,186,841.61/61,351.78
  6. Step 6: Final answer
    x = 25,462.78

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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.