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Finding the Fourth Proportional to 18,635.25, 27,926.67 and 14,455.83

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Solution

The fourth proportional to 18,635.25, 27,926.67 and 14,455.83 is: 21,663.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,635.25 : 27,926.67 = 14,455.83 : x
  2. Step 2: Convert to fraction form
    18,635.25/27,926.67 = 14,455.83/x
  3. Step 3: Cross multiply
    18,635.25x = 27,926.67 × 14,455.83
  4. Step 4: Simplify right side
    18,635.25x = 403,703,193.99
  5. Step 5: Solve for x
    x = 403,703,193.99/18,635.25
  6. Step 6: Final answer
    x = 21,663.42

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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.