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Finding the Fourth Proportional to 18,737.14, 27,906.88 and 18,646.62

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Solution

The fourth proportional to 18,737.14, 27,906.88 and 18,646.62 is: 27,772.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,737.14 : 27,906.88 = 18,646.62 : x
  2. Step 2: Convert to fraction form
    18,737.14/27,906.88 = 18,646.62/x
  3. Step 3: Cross multiply
    18,737.14x = 27,906.88 × 18,646.62
  4. Step 4: Simplify right side
    18,737.14x = 520,368,986.75
  5. Step 5: Solve for x
    x = 520,368,986.75/18,737.14
  6. Step 6: Final answer
    x = 27,772.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.