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Finding the Fourth Proportional to 8,673.80, 11,969.83 and 4,694.91

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Solution

The fourth proportional to 8,673.80, 11,969.83 and 4,694.91 is: 6,478.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,673.80 : 11,969.83 = 4,694.91 : x
  2. Step 2: Convert to fraction form
    8,673.80/11,969.83 = 4,694.91/x
  3. Step 3: Cross multiply
    8,673.80x = 11,969.83 × 4,694.91
  4. Step 4: Simplify right side
    8,673.80x = 56,197,274.57
  5. Step 5: Solve for x
    x = 56,197,274.57/8,673.80
  6. Step 6: Final answer
    x = 6,478.97

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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.