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Finding the Fourth Proportional to 18,305.01, 25,259.49 and 10,238.63

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Solution

The fourth proportional to 18,305.01, 25,259.49 and 10,238.63 is: 14,128.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,305.01 : 25,259.49 = 10,238.63 : x
  2. Step 2: Convert to fraction form
    18,305.01/25,259.49 = 10,238.63/x
  3. Step 3: Cross multiply
    18,305.01x = 25,259.49 × 10,238.63
  4. Step 4: Simplify right side
    18,305.01x = 258,622,445.80
  5. Step 5: Solve for x
    x = 258,622,445.80/18,305.01
  6. Step 6: Final answer
    x = 14,128.51

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Half scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.