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Finding the Fourth Proportional to 7,704.59, 11,549.59 and 6,997.46

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Solution

The fourth proportional to 7,704.59, 11,549.59 and 6,997.46 is: 10,489.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,704.59 : 11,549.59 = 6,997.46 : x
  2. Step 2: Convert to fraction form
    7,704.59/11,549.59 = 6,997.46/x
  3. Step 3: Cross multiply
    7,704.59x = 11,549.59 × 6,997.46
  4. Step 4: Simplify right side
    7,704.59x = 80,817,718.80
  5. Step 5: Solve for x
    x = 80,817,718.80/7,704.59
  6. Step 6: Final answer
    x = 10,489.56

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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.