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Finding the Fourth Proportional to 18,191.49, 25,104 and 10,233.70

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Solution

The fourth proportional to 18,191.49, 25,104 and 10,233.70 is: 14,122.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,191.49 : 25,104 = 10,233.70 : x
  2. Step 2: Convert to fraction form
    18,191.49/25,104 = 10,233.70/x
  3. Step 3: Cross multiply
    18,191.49x = 25,104 × 10,233.70
  4. Step 4: Simplify right side
    18,191.49x = 256,906,804.80
  5. Step 5: Solve for x
    x = 256,906,804.80/18,191.49
  6. Step 6: Final answer
    x = 14,122.36

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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.