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Finding the Fourth Proportional to 18,407.44, 25,401.72 and 10,231.02

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Solution

The fourth proportional to 18,407.44, 25,401.72 and 10,231.02 is: 14,118.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,407.44 : 25,401.72 = 10,231.02 : x
  2. Step 2: Convert to fraction form
    18,407.44/25,401.72 = 10,231.02/x
  3. Step 3: Cross multiply
    18,407.44x = 25,401.72 × 10,231.02
  4. Step 4: Simplify right side
    18,407.44x = 259,885,505.35
  5. Step 5: Solve for x
    x = 259,885,505.35/18,407.44
  6. Step 6: Final answer
    x = 14,118.50

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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.