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Finding the Fourth Proportional to 18,728.01, 25,844.67 and 10,230.25

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Solution

The fourth proportional to 18,728.01, 25,844.67 and 10,230.25 is: 14,117.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,728.01 : 25,844.67 = 10,230.25 : x
  2. Step 2: Convert to fraction form
    18,728.01/25,844.67 = 10,230.25/x
  3. Step 3: Cross multiply
    18,728.01x = 25,844.67 × 10,230.25
  4. Step 4: Simplify right side
    18,728.01x = 264,397,435.27
  5. Step 5: Solve for x
    x = 264,397,435.27/18,728.01
  6. Step 6: Final answer
    x = 14,117.75

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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.