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Finding the Fourth Proportional to 8,673.66, 11,969.65 and 4,694.81

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Solution

The fourth proportional to 8,673.66, 11,969.65 and 4,694.81 is: 6,478.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,673.66 : 11,969.65 = 4,694.81 : x
  2. Step 2: Convert to fraction form
    8,673.66/11,969.65 = 4,694.81/x
  3. Step 3: Cross multiply
    8,673.66x = 11,969.65 × 4,694.81
  4. Step 4: Simplify right side
    8,673.66x = 56,195,160.93
  5. Step 5: Solve for x
    x = 56,195,160.93/8,673.66
  6. Step 6: Final answer
    x = 6,478.83

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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.