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Finding the Fourth Proportional to 9,687.53, 14,532.60 and 3,115.73

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Solution

The fourth proportional to 9,687.53, 14,532.60 and 3,115.73 is: 4,674.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,687.53 : 14,532.60 = 3,115.73 : x
  2. Step 2: Convert to fraction form
    9,687.53/14,532.60 = 3,115.73/x
  3. Step 3: Cross multiply
    9,687.53x = 14,532.60 × 3,115.73
  4. Step 4: Simplify right side
    9,687.53x = 45,279,585.14
  5. Step 5: Solve for x
    x = 45,279,585.14/9,687.53
  6. Step 6: Final answer
    x = 4,674.01

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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.