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Finding the Fourth Proportional to 18,374.39, 27,526.89 and 10,855.52

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Solution

The fourth proportional to 18,374.39, 27,526.89 and 10,855.52 is: 16,262.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,374.39 : 27,526.89 = 10,855.52 : x
  2. Step 2: Convert to fraction form
    18,374.39/27,526.89 = 10,855.52/x
  3. Step 3: Cross multiply
    18,374.39x = 27,526.89 × 10,855.52
  4. Step 4: Simplify right side
    18,374.39x = 298,818,567.30
  5. Step 5: Solve for x
    x = 298,818,567.30/18,374.39
  6. Step 6: Final answer
    x = 16,262.78

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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.