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Finding the Fourth Proportional to 8,473.99, 12,711.06 and 3,479.11

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Solution

The fourth proportional to 8,473.99, 12,711.06 and 3,479.11 is: 5,218.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,473.99 : 12,711.06 = 3,479.11 : x
  2. Step 2: Convert to fraction form
    8,473.99/12,711.06 = 3,479.11/x
  3. Step 3: Cross multiply
    8,473.99x = 12,711.06 × 3,479.11
  4. Step 4: Simplify right side
    8,473.99x = 44,223,175.96
  5. Step 5: Solve for x
    x = 44,223,175.96/8,473.99
  6. Step 6: Final answer
    x = 5,218.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.