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Finding the Fourth Proportional to 18,199.16, 25,128.53 and 17,908.53

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Solution

The fourth proportional to 18,199.16, 25,128.53 and 17,908.53 is: 24,727.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,199.16 : 25,128.53 = 17,908.53 : x
  2. Step 2: Convert to fraction form
    18,199.16/25,128.53 = 17,908.53/x
  3. Step 3: Cross multiply
    18,199.16x = 25,128.53 × 17,908.53
  4. Step 4: Simplify right side
    18,199.16x = 450,015,033.36
  5. Step 5: Solve for x
    x = 450,015,033.36/18,199.16
  6. Step 6: Final answer
    x = 24,727.24

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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.