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Finding the Fourth Proportional to 66,828.92, 92,223.91 and 36,615.39

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Solution

The fourth proportional to 66,828.92, 92,223.91 and 36,615.39 is: 50,529.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,828.92 : 92,223.91 = 36,615.39 : x
  2. Step 2: Convert to fraction form
    66,828.92/92,223.91 = 36,615.39/x
  3. Step 3: Cross multiply
    66,828.92x = 92,223.91 × 36,615.39
  4. Step 4: Simplify right side
    66,828.92x = 3,376,814,028.92
  5. Step 5: Solve for x
    x = 3,376,814,028.92/66,828.92
  6. Step 6: Final answer
    x = 50,529.23

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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.