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Finding the Fourth Proportional to 8,673.80, 11,969.81 and 4,694.98

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Solution

The fourth proportional to 8,673.80, 11,969.81 and 4,694.98 is: 6,479.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,673.80 : 11,969.81 = 4,694.98 : x
  2. Step 2: Convert to fraction form
    8,673.80/11,969.81 = 4,694.98/x
  3. Step 3: Cross multiply
    8,673.80x = 11,969.81 × 4,694.98
  4. Step 4: Simplify right side
    8,673.80x = 56,198,018.55
  5. Step 5: Solve for x
    x = 56,198,018.55/8,673.80
  6. Step 6: Final answer
    x = 6,479.05

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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.