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Finding the Fourth Proportional to 61,585.31, 92,379.69 and 20,032.31

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Solution

The fourth proportional to 61,585.31, 92,379.69 and 20,032.31 is: 30,049.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,585.31 : 92,379.69 = 20,032.31 : x
  2. Step 2: Convert to fraction form
    61,585.31/92,379.69 = 20,032.31/x
  3. Step 3: Cross multiply
    61,585.31x = 92,379.69 × 20,032.31
  4. Step 4: Simplify right side
    61,585.31x = 1,850,578,818.73
  5. Step 5: Solve for x
    x = 1,850,578,818.73/61,585.31
  6. Step 6: Final answer
    x = 30,049.03

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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.