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Finding the Fourth Proportional to 62,615.92, 86,410.64 and 34,321

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Solution

The fourth proportional to 62,615.92, 86,410.64 and 34,321 is: 47,363.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,615.92 : 86,410.64 = 34,321 : x
  2. Step 2: Convert to fraction form
    62,615.92/86,410.64 = 34,321/x
  3. Step 3: Cross multiply
    62,615.92x = 86,410.64 × 34,321
  4. Step 4: Simplify right side
    62,615.92x = 2,965,699,575.44
  5. Step 5: Solve for x
    x = 2,965,699,575.44/62,615.92
  6. Step 6: Final answer
    x = 47,363.35

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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.