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Finding the Fourth Proportional to 61,480.96, 92,231.15 and 21,511.10

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Solution

The fourth proportional to 61,480.96, 92,231.15 and 21,511.10 is: 32,270.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,480.96 : 92,231.15 = 21,511.10 : x
  2. Step 2: Convert to fraction form
    61,480.96/92,231.15 = 21,511.10/x
  3. Step 3: Cross multiply
    61,480.96x = 92,231.15 × 21,511.10
  4. Step 4: Simplify right side
    61,480.96x = 1,983,993,613.79
  5. Step 5: Solve for x
    x = 1,983,993,613.79/61,480.96
  6. Step 6: Final answer
    x = 32,270.05

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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.