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Finding the Fourth Proportional to 61,983.86, 85,537.08 and 33,689.34

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Solution

The fourth proportional to 61,983.86, 85,537.08 and 33,689.34 is: 46,490.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,983.86 : 85,537.08 = 33,689.34 : x
  2. Step 2: Convert to fraction form
    61,983.86/85,537.08 = 33,689.34/x
  3. Step 3: Cross multiply
    61,983.86x = 85,537.08 × 33,689.34
  4. Step 4: Simplify right side
    61,983.86x = 2,881,687,770.73
  5. Step 5: Solve for x
    x = 2,881,687,770.73/61,983.86
  6. Step 6: Final answer
    x = 46,490.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.