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Finding the Fourth Proportional to 61,558.88, 84,945.12 and 37,692.32

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Solution

The fourth proportional to 61,558.88, 84,945.12 and 37,692.32 is: 52,011.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,558.88 : 84,945.12 = 37,692.32 : x
  2. Step 2: Convert to fraction form
    61,558.88/84,945.12 = 37,692.32/x
  3. Step 3: Cross multiply
    61,558.88x = 84,945.12 × 37,692.32
  4. Step 4: Simplify right side
    61,558.88x = 3,201,778,645.48
  5. Step 5: Solve for x
    x = 3,201,778,645.48/61,558.88
  6. Step 6: Final answer
    x = 52,011.65

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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.