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Finding the Fourth Proportional to 62,745.48, 86,027.36 and 61,622.82

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Solution

The fourth proportional to 62,745.48, 86,027.36 and 61,622.82 is: 84,488.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,745.48 : 86,027.36 = 61,622.82 : x
  2. Step 2: Convert to fraction form
    62,745.48/86,027.36 = 61,622.82/x
  3. Step 3: Cross multiply
    62,745.48x = 86,027.36 × 61,622.82
  4. Step 4: Simplify right side
    62,745.48x = 5,301,248,212.24
  5. Step 5: Solve for x
    x = 5,301,248,212.24/62,745.48
  6. Step 6: Final answer
    x = 84,488.13

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.