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Finding the Fourth Proportional to 18,343.94, 25,257.96 and 14,327

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Solution

The fourth proportional to 18,343.94, 25,257.96 and 14,327 is: 19,726.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,343.94 : 25,257.96 = 14,327 : x
  2. Step 2: Convert to fraction form
    18,343.94/25,257.96 = 14,327/x
  3. Step 3: Cross multiply
    18,343.94x = 25,257.96 × 14,327
  4. Step 4: Simplify right side
    18,343.94x = 361,870,792.92
  5. Step 5: Solve for x
    x = 361,870,792.92/18,343.94
  6. Step 6: Final answer
    x = 19,726.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.