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Finding the Fourth Proportional to 8,347.76, 11,493.60 and 6,351.92

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Solution

The fourth proportional to 8,347.76, 11,493.60 and 6,351.92 is: 8,745.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,347.76 : 11,493.60 = 6,351.92 : x
  2. Step 2: Convert to fraction form
    8,347.76/11,493.60 = 6,351.92/x
  3. Step 3: Cross multiply
    8,347.76x = 11,493.60 × 6,351.92
  4. Step 4: Simplify right side
    8,347.76x = 73,006,427.71
  5. Step 5: Solve for x
    x = 73,006,427.71/8,347.76
  6. Step 6: Final answer
    x = 8,745.63

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1.5x scale

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.