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Finding the Fourth Proportional to 7,236.52, 10,856.36 and 3,076.64

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Solution

The fourth proportional to 7,236.52, 10,856.36 and 3,076.64 is: 4,615.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,236.52 : 10,856.36 = 3,076.64 : x
  2. Step 2: Convert to fraction form
    7,236.52/10,856.36 = 3,076.64/x
  3. Step 3: Cross multiply
    7,236.52x = 10,856.36 × 3,076.64
  4. Step 4: Simplify right side
    7,236.52x = 33,401,111.43
  5. Step 5: Solve for x
    x = 33,401,111.43/7,236.52
  6. Step 6: Final answer
    x = 4,615.63

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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.