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Finding the Fourth Proportional to 18,168.93, 25,067.75 and 10,613.25

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Solution

The fourth proportional to 18,168.93, 25,067.75 and 10,613.25 is: 14,643.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,168.93 : 25,067.75 = 10,613.25 : x
  2. Step 2: Convert to fraction form
    18,168.93/25,067.75 = 10,613.25/x
  3. Step 3: Cross multiply
    18,168.93x = 25,067.75 × 10,613.25
  4. Step 4: Simplify right side
    18,168.93x = 266,050,244.62
  5. Step 5: Solve for x
    x = 266,050,244.62/18,168.93
  6. Step 6: Final answer
    x = 14,643.14

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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.