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Finding the Fourth Proportional to 62,415.70, 86,127.49 and 35,556.61

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Solution

The fourth proportional to 62,415.70, 86,127.49 and 35,556.61 is: 49,064.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,415.70 : 86,127.49 = 35,556.61 : x
  2. Step 2: Convert to fraction form
    62,415.70/86,127.49 = 35,556.61/x
  3. Step 3: Cross multiply
    62,415.70x = 86,127.49 × 35,556.61
  4. Step 4: Simplify right side
    62,415.70x = 3,062,401,572.21
  5. Step 5: Solve for x
    x = 3,062,401,572.21/62,415.70
  6. Step 6: Final answer
    x = 49,064.60

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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.