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Finding the Fourth Proportional to 18,203.92, 27,305.90 and 10,407.26

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Solution

The fourth proportional to 18,203.92, 27,305.90 and 10,407.26 is: 15,610.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,203.92 : 27,305.90 = 10,407.26 : x
  2. Step 2: Convert to fraction form
    18,203.92/27,305.90 = 10,407.26/x
  3. Step 3: Cross multiply
    18,203.92x = 27,305.90 × 10,407.26
  4. Step 4: Simplify right side
    18,203.92x = 284,179,600.83
  5. Step 5: Solve for x
    x = 284,179,600.83/18,203.92
  6. Step 6: Final answer
    x = 15,610.90

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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.