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Finding the Fourth Proportional to 7,967.61, 11,946.79 and 2,700.85

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Solution

The fourth proportional to 7,967.61, 11,946.79 and 2,700.85 is: 4,049.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,967.61 : 11,946.79 = 2,700.85 : x
  2. Step 2: Convert to fraction form
    7,967.61/11,946.79 = 2,700.85/x
  3. Step 3: Cross multiply
    7,967.61x = 11,946.79 × 2,700.85
  4. Step 4: Simplify right side
    7,967.61x = 32,266,487.77
  5. Step 5: Solve for x
    x = 32,266,487.77/7,967.61
  6. Step 6: Final answer
    x = 4,049.71

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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.