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Finding the Fourth Proportional to 8,469.50, 11,688.28 and 4,932.14

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Solution

The fourth proportional to 8,469.50, 11,688.28 and 4,932.14 is: 6,806.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,469.50 : 11,688.28 = 4,932.14 : x
  2. Step 2: Convert to fraction form
    8,469.50/11,688.28 = 4,932.14/x
  3. Step 3: Cross multiply
    8,469.50x = 11,688.28 × 4,932.14
  4. Step 4: Simplify right side
    8,469.50x = 57,648,233.32
  5. Step 5: Solve for x
    x = 57,648,233.32/8,469.50
  6. Step 6: Final answer
    x = 6,806.57

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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.