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Finding the Fourth Proportional to 8,673.35, 11,969.21 and 4,694.45

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Solution

The fourth proportional to 8,673.35, 11,969.21 and 4,694.45 is: 6,478.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,673.35 : 11,969.21 = 4,694.45 : x
  2. Step 2: Convert to fraction form
    8,673.35/11,969.21 = 4,694.45/x
  3. Step 3: Cross multiply
    8,673.35x = 11,969.21 × 4,694.45
  4. Step 4: Simplify right side
    8,673.35x = 56,188,850.70
  5. Step 5: Solve for x
    x = 56,188,850.70/8,673.35
  6. Step 6: Final answer
    x = 6,478.34

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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.