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Finding the Fourth Proportional to 18,509.26, 25,540.92 and 10,551.04

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Solution

The fourth proportional to 18,509.26, 25,540.92 and 10,551.04 is: 14,559.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,509.26 : 25,540.92 = 10,551.04 : x
  2. Step 2: Convert to fraction form
    18,509.26/25,540.92 = 10,551.04/x
  3. Step 3: Cross multiply
    18,509.26x = 25,540.92 × 10,551.04
  4. Step 4: Simplify right side
    18,509.26x = 269,483,268.56
  5. Step 5: Solve for x
    x = 269,483,268.56/18,509.26
  6. Step 6: Final answer
    x = 14,559.38

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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.