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Finding the Fourth Proportional to 61,450.59, 92,198.09 and 21,475.50

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Solution

The fourth proportional to 61,450.59, 92,198.09 and 21,475.50 is: 32,221.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,450.59 : 92,198.09 = 21,475.50 : x
  2. Step 2: Convert to fraction form
    61,450.59/92,198.09 = 21,475.50/x
  3. Step 3: Cross multiply
    61,450.59x = 92,198.09 × 21,475.50
  4. Step 4: Simplify right side
    61,450.59x = 1,980,000,081.80
  5. Step 5: Solve for x
    x = 1,980,000,081.80/61,450.59
  6. Step 6: Final answer
    x = 32,221.01

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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.