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Finding the Fourth Proportional to 61,904.62, 85,448.69 and 36,409.87

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Solution

The fourth proportional to 61,904.62, 85,448.69 and 36,409.87 is: 50,257.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,904.62 : 85,448.69 = 36,409.87 : x
  2. Step 2: Convert to fraction form
    61,904.62/85,448.69 = 36,409.87/x
  3. Step 3: Cross multiply
    61,904.62x = 85,448.69 × 36,409.87
  4. Step 4: Simplify right side
    61,904.62x = 3,111,175,694.57
  5. Step 5: Solve for x
    x = 3,111,175,694.57/61,904.62
  6. Step 6: Final answer
    x = 50,257.57

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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.