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Finding the Fourth Proportional to 8,490.60, 11,717.04 and 4,954.04

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Solution

The fourth proportional to 8,490.60, 11,717.04 and 4,954.04 is: 6,836.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,490.60 : 11,717.04 = 4,954.04 : x
  2. Step 2: Convert to fraction form
    8,490.60/11,717.04 = 4,954.04/x
  3. Step 3: Cross multiply
    8,490.60x = 11,717.04 × 4,954.04
  4. Step 4: Simplify right side
    8,490.60x = 58,046,601.49
  5. Step 5: Solve for x
    x = 58,046,601.49/8,490.60
  6. Step 6: Final answer
    x = 6,836.58

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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.