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Finding the Fourth Proportional to 8,469.56, 11,688.00 and 4,743.56

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Solution

The fourth proportional to 8,469.56, 11,688.00 and 4,743.56 is: 6,546.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,469.56 : 11,688.00 = 4,743.56 : x
  2. Step 2: Convert to fraction form
    8,469.56/11,688.00 = 4,743.56/x
  3. Step 3: Cross multiply
    8,469.56x = 11,688.00 × 4,743.56
  4. Step 4: Simplify right side
    8,469.56x = 55,442,740.71
  5. Step 5: Solve for x
    x = 55,442,740.71/8,469.56
  6. Step 6: Final answer
    x = 6,546.12

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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.