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Finding the Fourth Proportional to 18,555.52, 27,834.54 and 7,462.20

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Solution

The fourth proportional to 18,555.52, 27,834.54 and 7,462.20 is: 11,193.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,555.52 : 27,834.54 = 7,462.20 : x
  2. Step 2: Convert to fraction form
    18,555.52/27,834.54 = 7,462.20/x
  3. Step 3: Cross multiply
    18,555.52x = 27,834.54 × 7,462.20
  4. Step 4: Simplify right side
    18,555.52x = 207,706,904.39
  5. Step 5: Solve for x
    x = 207,706,904.39/18,555.52
  6. Step 6: Final answer
    x = 11,193.81

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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.