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Finding the Fourth Proportional to 18,654.59, 25,736.29 and 11,101.24

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Solution

The fourth proportional to 18,654.59, 25,736.29 and 11,101.24 is: 15,315.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,654.59 : 25,736.29 = 11,101.24 : x
  2. Step 2: Convert to fraction form
    18,654.59/25,736.29 = 11,101.24/x
  3. Step 3: Cross multiply
    18,654.59x = 25,736.29 × 11,101.24
  4. Step 4: Simplify right side
    18,654.59x = 285,704,732.00
  5. Step 5: Solve for x
    x = 285,704,732.00/18,654.59
  6. Step 6: Final answer
    x = 15,315.52

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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.