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Finding the Fourth Proportional to 8,750.66, 13,118.63 and 3,816.54

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Solution

The fourth proportional to 8,750.66, 13,118.63 and 3,816.54 is: 5,721.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,750.66 : 13,118.63 = 3,816.54 : x
  2. Step 2: Convert to fraction form
    8,750.66/13,118.63 = 3,816.54/x
  3. Step 3: Cross multiply
    8,750.66x = 13,118.63 × 3,816.54
  4. Step 4: Simplify right side
    8,750.66x = 50,067,757.06
  5. Step 5: Solve for x
    x = 50,067,757.06/8,750.66
  6. Step 6: Final answer
    x = 5,721.60

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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.