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Finding the Fourth Proportional to 7,067.80, 10,601.70 and 6,711.40

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Solution

The fourth proportional to 7,067.80, 10,601.70 and 6,711.40 is: 10,067.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,067.80 : 10,601.70 = 6,711.40 : x
  2. Step 2: Convert to fraction form
    7,067.80/10,601.70 = 6,711.40/x
  3. Step 3: Cross multiply
    7,067.80x = 10,601.70 × 6,711.40
  4. Step 4: Simplify right side
    7,067.80x = 71,152,249.38
  5. Step 5: Solve for x
    x = 71,152,249.38/7,067.80
  6. Step 6: Final answer
    x = 10,067.10

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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.