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Finding the Fourth Proportional to 18,201.30, 27,303.24 and 7,104.30

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Solution

The fourth proportional to 18,201.30, 27,303.24 and 7,104.30 is: 10,656.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,201.30 : 27,303.24 = 7,104.30 : x
  2. Step 2: Convert to fraction form
    18,201.30/27,303.24 = 7,104.30/x
  3. Step 3: Cross multiply
    18,201.30x = 27,303.24 × 7,104.30
  4. Step 4: Simplify right side
    18,201.30x = 193,970,407.93
  5. Step 5: Solve for x
    x = 193,970,407.93/18,201.30
  6. Step 6: Final answer
    x = 10,656.95

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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.