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Finding the Fourth Proportional to 18,507.82, 25,549.13 and 11,802.46

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Solution

The fourth proportional to 18,507.82, 25,549.13 and 11,802.46 is: 16,292.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,507.82 : 25,549.13 = 11,802.46 : x
  2. Step 2: Convert to fraction form
    18,507.82/25,549.13 = 11,802.46/x
  3. Step 3: Cross multiply
    18,507.82x = 25,549.13 × 11,802.46
  4. Step 4: Simplify right side
    18,507.82x = 301,542,584.86
  5. Step 5: Solve for x
    x = 301,542,584.86/18,507.82
  6. Step 6: Final answer
    x = 16,292.71

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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.