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Finding the Fourth Proportional to 16,666.81, 24,982.79 and 7,891.27

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Solution

The fourth proportional to 16,666.81, 24,982.79 and 7,891.27 is: 11,828.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,666.81 : 24,982.79 = 7,891.27 : x
  2. Step 2: Convert to fraction form
    16,666.81/24,982.79 = 7,891.27/x
  3. Step 3: Cross multiply
    16,666.81x = 24,982.79 × 7,891.27
  4. Step 4: Simplify right side
    16,666.81x = 197,145,941.24
  5. Step 5: Solve for x
    x = 197,145,941.24/16,666.81
  6. Step 6: Final answer
    x = 11,828.65

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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.