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Finding the Fourth Proportional to 17,709.96, 26,568.54 and 7,321.71

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Solution

The fourth proportional to 17,709.96, 26,568.54 and 7,321.71 is: 10,984.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,709.96 : 26,568.54 = 7,321.71 : x
  2. Step 2: Convert to fraction form
    17,709.96/26,568.54 = 7,321.71/x
  3. Step 3: Cross multiply
    17,709.96x = 26,568.54 × 7,321.71
  4. Step 4: Simplify right side
    17,709.96x = 194,527,145.00
  5. Step 5: Solve for x
    x = 194,527,145.00/17,709.96
  6. Step 6: Final answer
    x = 10,984.05

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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.