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Finding the Fourth Proportional to 61,403.98, 84,747.85 and 35,558.77

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Solution

The fourth proportional to 61,403.98, 84,747.85 and 35,558.77 is: 49,077.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,403.98 : 84,747.85 = 35,558.77 : x
  2. Step 2: Convert to fraction form
    61,403.98/84,747.85 = 35,558.77/x
  3. Step 3: Cross multiply
    61,403.98x = 84,747.85 × 35,558.77
  4. Step 4: Simplify right side
    61,403.98x = 3,013,529,306.14
  5. Step 5: Solve for x
    x = 3,013,529,306.14/61,403.98
  6. Step 6: Final answer
    x = 49,077.10

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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.