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Finding the Fourth Proportional to 20,081, 27,673.58 and 14,705.09

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Solution

The fourth proportional to 20,081, 27,673.58 and 14,705.09 is: 20,265.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,081 : 27,673.58 = 14,705.09 : x
  2. Step 2: Convert to fraction form
    20,081/27,673.58 = 14,705.09/x
  3. Step 3: Cross multiply
    20,081x = 27,673.58 × 14,705.09
  4. Step 4: Simplify right side
    20,081x = 406,942,484.52
  5. Step 5: Solve for x
    x = 406,942,484.52/20,081
  6. Step 6: Final answer
    x = 20,265.05

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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.