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Finding the Fourth Proportional to 18,189.36, 25,113.24 and 14,016.24

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Solution

The fourth proportional to 18,189.36, 25,113.24 and 14,016.24 is: 19,351.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,189.36 : 25,113.24 = 14,016.24 : x
  2. Step 2: Convert to fraction form
    18,189.36/25,113.24 = 14,016.24/x
  3. Step 3: Cross multiply
    18,189.36x = 25,113.24 × 14,016.24
  4. Step 4: Simplify right side
    18,189.36x = 351,993,199.02
  5. Step 5: Solve for x
    x = 351,993,199.02/18,189.36
  6. Step 6: Final answer
    x = 19,351.60

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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.