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Finding the Fourth Proportional to 18,201.05, 27,301.59 and 5,053.42

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Solution

The fourth proportional to 18,201.05, 27,301.59 and 5,053.42 is: 7,580.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,201.05 : 27,301.59 = 5,053.42 : x
  2. Step 2: Convert to fraction form
    18,201.05/27,301.59 = 5,053.42/x
  3. Step 3: Cross multiply
    18,201.05x = 27,301.59 × 5,053.42
  4. Step 4: Simplify right side
    18,201.05x = 137,966,375.67
  5. Step 5: Solve for x
    x = 137,966,375.67/18,201.05
  6. Step 6: Final answer
    x = 7,580.13

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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.