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Finding the Fourth Proportional to 61,457.16, 92,207.82 and 21,481.98

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Solution

The fourth proportional to 61,457.16, 92,207.82 and 21,481.98 is: 32,230.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,457.16 : 92,207.82 = 21,481.98 : x
  2. Step 2: Convert to fraction form
    61,457.16/92,207.82 = 21,481.98/x
  3. Step 3: Cross multiply
    61,457.16x = 92,207.82 × 21,481.98
  4. Step 4: Simplify right side
    61,457.16x = 1,980,806,545.08
  5. Step 5: Solve for x
    x = 1,980,806,545.08/61,457.16
  6. Step 6: Final answer
    x = 32,230.69

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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.