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Finding the Fourth Proportional to 18,203.13, 25,119.99 and 10,246.23

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Solution

The fourth proportional to 18,203.13, 25,119.99 and 10,246.23 is: 14,139.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,203.13 : 25,119.99 = 10,246.23 : x
  2. Step 2: Convert to fraction form
    18,203.13/25,119.99 = 10,246.23/x
  3. Step 3: Cross multiply
    18,203.13x = 25,119.99 × 10,246.23
  4. Step 4: Simplify right side
    18,203.13x = 257,385,195.14
  5. Step 5: Solve for x
    x = 257,385,195.14/18,203.13
  6. Step 6: Final answer
    x = 14,139.61

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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.