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Finding the Fourth Proportional to 18,824.97, 25,978.82 and 10,327.53

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Solution

The fourth proportional to 18,824.97, 25,978.82 and 10,327.53 is: 14,252.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,824.97 : 25,978.82 = 10,327.53 : x
  2. Step 2: Convert to fraction form
    18,824.97/25,978.82 = 10,327.53/x
  3. Step 3: Cross multiply
    18,824.97x = 25,978.82 × 10,327.53
  4. Step 4: Simplify right side
    18,824.97x = 268,296,991.28
  5. Step 5: Solve for x
    x = 268,296,991.28/18,824.97
  6. Step 6: Final answer
    x = 14,252.19

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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.