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Finding the Fourth Proportional to 18,523.69, 25,562.69 and 10,140.19

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Solution

The fourth proportional to 18,523.69, 25,562.69 and 10,140.19 is: 13,993.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,523.69 : 25,562.69 = 10,140.19 : x
  2. Step 2: Convert to fraction form
    18,523.69/25,562.69 = 10,140.19/x
  3. Step 3: Cross multiply
    18,523.69x = 25,562.69 × 10,140.19
  4. Step 4: Simplify right side
    18,523.69x = 259,210,456.93
  5. Step 5: Solve for x
    x = 259,210,456.93/18,523.69
  6. Step 6: Final answer
    x = 13,993.46

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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.