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Finding the Fourth Proportional to 18,231.40, 27,314.70 and 14,926.60

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Solution

The fourth proportional to 18,231.40, 27,314.70 and 14,926.60 is: 22,363.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,231.40 : 27,314.70 = 14,926.60 : x
  2. Step 2: Convert to fraction form
    18,231.40/27,314.70 = 14,926.60/x
  3. Step 3: Cross multiply
    18,231.40x = 27,314.70 × 14,926.60
  4. Step 4: Simplify right side
    18,231.40x = 407,715,601.02
  5. Step 5: Solve for x
    x = 407,715,601.02/18,231.40
  6. Step 6: Final answer
    x = 22,363.37

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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.