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Finding the Fourth Proportional to 16,809.66, 25,218 and 5,716.62

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Solution

The fourth proportional to 16,809.66, 25,218 and 5,716.62 is: 8,576.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,809.66 : 25,218 = 5,716.62 : x
  2. Step 2: Convert to fraction form
    16,809.66/25,218 = 5,716.62/x
  3. Step 3: Cross multiply
    16,809.66x = 25,218 × 5,716.62
  4. Step 4: Simplify right side
    16,809.66x = 144,161,723.16
  5. Step 5: Solve for x
    x = 144,161,723.16/16,809.66
  6. Step 6: Final answer
    x = 8,576.12

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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.