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Finding the Fourth Proportional to 62,840.90, 86,761.05 and 41,648.90

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Solution

The fourth proportional to 62,840.90, 86,761.05 and 41,648.90 is: 57,502.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,840.90 : 86,761.05 = 41,648.90 : x
  2. Step 2: Convert to fraction form
    62,840.90/86,761.05 = 41,648.90/x
  3. Step 3: Cross multiply
    62,840.90x = 86,761.05 × 41,648.90
  4. Step 4: Simplify right side
    62,840.90x = 3,613,502,295.35
  5. Step 5: Solve for x
    x = 3,613,502,295.35/62,840.90
  6. Step 6: Final answer
    x = 57,502.40

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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.