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Finding the Fourth Proportional to 10,662.57, 15,991.25 and 4,736.19

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Solution

The fourth proportional to 10,662.57, 15,991.25 and 4,736.19 is: 7,103.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,662.57 : 15,991.25 = 4,736.19 : x
  2. Step 2: Convert to fraction form
    10,662.57/15,991.25 = 4,736.19/x
  3. Step 3: Cross multiply
    10,662.57x = 15,991.25 × 4,736.19
  4. Step 4: Simplify right side
    10,662.57x = 75,737,574.66
  5. Step 5: Solve for x
    x = 75,737,574.66/10,662.57
  6. Step 6: Final answer
    x = 7,103.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.