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Finding the Fourth Proportional to 62,205.72, 85,776.11 and 42,027.61

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Solution

The fourth proportional to 62,205.72, 85,776.11 and 42,027.61 is: 57,952.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,205.72 : 85,776.11 = 42,027.61 : x
  2. Step 2: Convert to fraction form
    62,205.72/85,776.11 = 42,027.61/x
  3. Step 3: Cross multiply
    62,205.72x = 85,776.11 × 42,027.61
  4. Step 4: Simplify right side
    62,205.72x = 3,604,965,028.66
  5. Step 5: Solve for x
    x = 3,604,965,028.66/62,205.72
  6. Step 6: Final answer
    x = 57,952.31

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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.