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Finding the Fourth Proportional to 61,995.21, 93,001.57 and 19,865.44

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Solution

The fourth proportional to 61,995.21, 93,001.57 and 19,865.44 is: 29,800.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,995.21 : 93,001.57 = 19,865.44 : x
  2. Step 2: Convert to fraction form
    61,995.21/93,001.57 = 19,865.44/x
  3. Step 3: Cross multiply
    61,995.21x = 93,001.57 × 19,865.44
  4. Step 4: Simplify right side
    61,995.21x = 1,847,517,108.74
  5. Step 5: Solve for x
    x = 1,847,517,108.74/61,995.21
  6. Step 6: Final answer
    x = 29,800.97

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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.