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Finding the Fourth Proportional to 67,890.77, 93,696.18 and 37,676.30

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Solution

The fourth proportional to 67,890.77, 93,696.18 and 37,676.30 is: 51,997.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,890.77 : 93,696.18 = 37,676.30 : x
  2. Step 2: Convert to fraction form
    67,890.77/93,696.18 = 37,676.30/x
  3. Step 3: Cross multiply
    67,890.77x = 93,696.18 × 37,676.30
  4. Step 4: Simplify right side
    67,890.77x = 3,530,125,386.53
  5. Step 5: Solve for x
    x = 3,530,125,386.53/67,890.77
  6. Step 6: Final answer
    x = 51,997.13

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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.