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Finding the Fourth Proportional to 8,796.11, 12,138 and 4,816.58

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Solution

The fourth proportional to 8,796.11, 12,138 and 4,816.58 is: 6,646.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,796.11 : 12,138 = 4,816.58 : x
  2. Step 2: Convert to fraction form
    8,796.11/12,138 = 4,816.58/x
  3. Step 3: Cross multiply
    8,796.11x = 12,138 × 4,816.58
  4. Step 4: Simplify right side
    8,796.11x = 58,463,648.04
  5. Step 5: Solve for x
    x = 58,463,648.04/8,796.11
  6. Step 6: Final answer
    x = 6,646.53

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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.