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Finding the Fourth Proportional to 62,235, 85,871.40 and 36,388.58

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Solution

The fourth proportional to 62,235, 85,871.40 and 36,388.58 is: 50,208.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,235 : 85,871.40 = 36,388.58 : x
  2. Step 2: Convert to fraction form
    62,235/85,871.40 = 36,388.58/x
  3. Step 3: Cross multiply
    62,235x = 85,871.40 × 36,388.58
  4. Step 4: Simplify right side
    62,235x = 3,124,737,879.26
  5. Step 5: Solve for x
    x = 3,124,737,879.26/62,235
  6. Step 6: Final answer
    x = 50,208.69

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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.