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Finding the Fourth Proportional to 18,344.70, 27,468.45 and 14,456.70

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Solution

The fourth proportional to 18,344.70, 27,468.45 and 14,456.70 is: 21,646.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,344.70 : 27,468.45 = 14,456.70 : x
  2. Step 2: Convert to fraction form
    18,344.70/27,468.45 = 14,456.70/x
  3. Step 3: Cross multiply
    18,344.70x = 27,468.45 × 14,456.70
  4. Step 4: Simplify right side
    18,344.70x = 397,103,141.12
  5. Step 5: Solve for x
    x = 397,103,141.12/18,344.70
  6. Step 6: Final answer
    x = 21,646.75

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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.