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Finding the Fourth Proportional to 18,185.22, 25,095.08 and 11,019.38

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Solution

The fourth proportional to 18,185.22, 25,095.08 and 11,019.38 is: 15,206.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,185.22 : 25,095.08 = 11,019.38 : x
  2. Step 2: Convert to fraction form
    18,185.22/25,095.08 = 11,019.38/x
  3. Step 3: Cross multiply
    18,185.22x = 25,095.08 × 11,019.38
  4. Step 4: Simplify right side
    18,185.22x = 276,532,124.72
  5. Step 5: Solve for x
    x = 276,532,124.72/18,185.22
  6. Step 6: Final answer
    x = 15,206.42

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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.