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Finding the Fourth Proportional to 16,813.68, 25,218.96 and 7,926.96

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Solution

The fourth proportional to 16,813.68, 25,218.96 and 7,926.96 is: 11,889.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,813.68 : 25,218.96 = 7,926.96 : x
  2. Step 2: Convert to fraction form
    16,813.68/25,218.96 = 7,926.96/x
  3. Step 3: Cross multiply
    16,813.68x = 25,218.96 × 7,926.96
  4. Step 4: Simplify right side
    16,813.68x = 199,909,687.16
  5. Step 5: Solve for x
    x = 199,909,687.16/16,813.68
  6. Step 6: Final answer
    x = 11,889.70

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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.