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Finding the Fourth Proportional to 62,608.86, 86,396.31 and 34,312.54

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Solution

The fourth proportional to 62,608.86, 86,396.31 and 34,312.54 is: 47,349.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,608.86 : 86,396.31 = 34,312.54 : x
  2. Step 2: Convert to fraction form
    62,608.86/86,396.31 = 34,312.54/x
  3. Step 3: Cross multiply
    62,608.86x = 86,396.31 × 34,312.54
  4. Step 4: Simplify right side
    62,608.86x = 2,964,476,842.73
  5. Step 5: Solve for x
    x = 2,964,476,842.73/62,608.86
  6. Step 6: Final answer
    x = 47,349.16

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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.