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Finding the Fourth Proportional to 61,511.70, 84,889.98 and 35,675.50

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Solution

The fourth proportional to 61,511.70, 84,889.98 and 35,675.50 is: 49,234.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,511.70 : 84,889.98 = 35,675.50 : x
  2. Step 2: Convert to fraction form
    61,511.70/84,889.98 = 35,675.50/x
  3. Step 3: Cross multiply
    61,511.70x = 84,889.98 × 35,675.50
  4. Step 4: Simplify right side
    61,511.70x = 3,028,492,481.49
  5. Step 5: Solve for x
    x = 3,028,492,481.49/61,511.70
  6. Step 6: Final answer
    x = 49,234.41

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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.