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Finding the Fourth Proportional to 18,162.42, 25,065.09 and 11,088.42

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Solution

The fourth proportional to 18,162.42, 25,065.09 and 11,088.42 is: 15,302.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,162.42 : 25,065.09 = 11,088.42 : x
  2. Step 2: Convert to fraction form
    18,162.42/25,065.09 = 11,088.42/x
  3. Step 3: Cross multiply
    18,162.42x = 25,065.09 × 11,088.42
  4. Step 4: Simplify right side
    18,162.42x = 277,932,245.26
  5. Step 5: Solve for x
    x = 277,932,245.26/18,162.42
  6. Step 6: Final answer
    x = 15,302.60

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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.