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Finding the Fourth Proportional to 8,624, 11,902.56 and 4,900.16

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Solution

The fourth proportional to 8,624, 11,902.56 and 4,900.16 is: 6,763.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,624 : 11,902.56 = 4,900.16 : x
  2. Step 2: Convert to fraction form
    8,624/11,902.56 = 4,900.16/x
  3. Step 3: Cross multiply
    8,624x = 11,902.56 × 4,900.16
  4. Step 4: Simplify right side
    8,624x = 58,324,448.41
  5. Step 5: Solve for x
    x = 58,324,448.41/8,624
  6. Step 6: Final answer
    x = 6,763.04

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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.