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Finding the Fourth Proportional to 18,729.01, 25,846.05 and 10,231.25

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Solution

The fourth proportional to 18,729.01, 25,846.05 and 10,231.25 is: 14,119.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,729.01 : 25,846.05 = 10,231.25 : x
  2. Step 2: Convert to fraction form
    18,729.01/25,846.05 = 10,231.25/x
  3. Step 3: Cross multiply
    18,729.01x = 25,846.05 × 10,231.25
  4. Step 4: Simplify right side
    18,729.01x = 264,437,399.06
  5. Step 5: Solve for x
    x = 264,437,399.06/18,729.01
  6. Step 6: Final answer
    x = 14,119.13

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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.