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Finding the Fourth Proportional to 61,997.50, 92,996.30 and 20,444.50

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Solution

The fourth proportional to 61,997.50, 92,996.30 and 20,444.50 is: 30,666.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,997.50 : 92,996.30 = 20,444.50 : x
  2. Step 2: Convert to fraction form
    61,997.50/92,996.30 = 20,444.50/x
  3. Step 3: Cross multiply
    61,997.50x = 92,996.30 × 20,444.50
  4. Step 4: Simplify right side
    61,997.50x = 1,901,262,855.35
  5. Step 5: Solve for x
    x = 1,901,262,855.35/61,997.50
  6. Step 6: Final answer
    x = 30,666.77

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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.