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Finding the Fourth Proportional to 18,147.52, 27,201.66 and 7,623.24

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Solution

The fourth proportional to 18,147.52, 27,201.66 and 7,623.24 is: 11,426.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,147.52 : 27,201.66 = 7,623.24 : x
  2. Step 2: Convert to fraction form
    18,147.52/27,201.66 = 7,623.24/x
  3. Step 3: Cross multiply
    18,147.52x = 27,201.66 × 7,623.24
  4. Step 4: Simplify right side
    18,147.52x = 207,364,782.58
  5. Step 5: Solve for x
    x = 207,364,782.58/18,147.52
  6. Step 6: Final answer
    x = 11,426.62

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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.