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Finding the Fourth Proportional to 7,754.72, 11,631.78 and 6,711.35

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Solution

The fourth proportional to 7,754.72, 11,631.78 and 6,711.35 is: 10,066.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,754.72 : 11,631.78 = 6,711.35 : x
  2. Step 2: Convert to fraction form
    7,754.72/11,631.78 = 6,711.35/x
  3. Step 3: Cross multiply
    7,754.72x = 11,631.78 × 6,711.35
  4. Step 4: Simplify right side
    7,754.72x = 78,064,888.54
  5. Step 5: Solve for x
    x = 78,064,888.54/7,754.72
  6. Step 6: Final answer
    x = 10,066.76

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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.