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Finding the Fourth Proportional to 6,372.70, 8,792.13 and 3,981.04

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Solution

The fourth proportional to 6,372.70, 8,792.13 and 3,981.04 is: 5,492.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,372.70 : 8,792.13 = 3,981.04 : x
  2. Step 2: Convert to fraction form
    6,372.70/8,792.13 = 3,981.04/x
  3. Step 3: Cross multiply
    6,372.70x = 8,792.13 × 3,981.04
  4. Step 4: Simplify right side
    6,372.70x = 35,001,821.22
  5. Step 5: Solve for x
    x = 35,001,821.22/6,372.70
  6. Step 6: Final answer
    x = 5,492.46

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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.