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Finding the Fourth Proportional to 18,262.42, 27,383.14 and 7,156.10

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Solution

The fourth proportional to 18,262.42, 27,383.14 and 7,156.10 is: 10,730.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,262.42 : 27,383.14 = 7,156.10 : x
  2. Step 2: Convert to fraction form
    18,262.42/27,383.14 = 7,156.10/x
  3. Step 3: Cross multiply
    18,262.42x = 27,383.14 × 7,156.10
  4. Step 4: Simplify right side
    18,262.42x = 195,956,488.15
  5. Step 5: Solve for x
    x = 195,956,488.15/18,262.42
  6. Step 6: Final answer
    x = 10,730.04

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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.