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Finding the Fourth Proportional to 18,530.01, 27,799.14 and 7,286.43

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Solution

The fourth proportional to 18,530.01, 27,799.14 and 7,286.43 is: 10,931.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,530.01 : 27,799.14 = 7,286.43 : x
  2. Step 2: Convert to fraction form
    18,530.01/27,799.14 = 7,286.43/x
  3. Step 3: Cross multiply
    18,530.01x = 27,799.14 × 7,286.43
  4. Step 4: Simplify right side
    18,530.01x = 202,556,487.67
  5. Step 5: Solve for x
    x = 202,556,487.67/18,530.01
  6. Step 6: Final answer
    x = 10,931.27

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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.