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Finding the Fourth Proportional to 18,268.13, 27,380.13 and 8,894.10

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Solution

The fourth proportional to 18,268.13, 27,380.13 and 8,894.10 is: 13,330.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,268.13 : 27,380.13 = 8,894.10 : x
  2. Step 2: Convert to fraction form
    18,268.13/27,380.13 = 8,894.10/x
  3. Step 3: Cross multiply
    18,268.13x = 27,380.13 × 8,894.10
  4. Step 4: Simplify right side
    18,268.13x = 243,521,683.56
  5. Step 5: Solve for x
    x = 243,521,683.56/18,268.13
  6. Step 6: Final answer
    x = 13,330.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.