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Finding the Fourth Proportional to 62,615.88, 86,409.92 and 34,320.96

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Solution

The fourth proportional to 62,615.88, 86,409.92 and 34,320.96 is: 47,362.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,615.88 : 86,409.92 = 34,320.96 : x
  2. Step 2: Convert to fraction form
    62,615.88/86,409.92 = 34,320.96/x
  3. Step 3: Cross multiply
    62,615.88x = 86,409.92 × 34,320.96
  4. Step 4: Simplify right side
    62,615.88x = 2,965,671,407.92
  5. Step 5: Solve for x
    x = 2,965,671,407.92/62,615.88
  6. Step 6: Final answer
    x = 47,362.93

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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.