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Finding the Fourth Proportional to 20,194.76, 27,866.94 and 11,242.76

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Solution

The fourth proportional to 20,194.76, 27,866.94 and 11,242.76 is: 15,513.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,194.76 : 27,866.94 = 11,242.76 : x
  2. Step 2: Convert to fraction form
    20,194.76/27,866.94 = 11,242.76/x
  3. Step 3: Cross multiply
    20,194.76x = 27,866.94 × 11,242.76
  4. Step 4: Simplify right side
    20,194.76x = 313,301,318.35
  5. Step 5: Solve for x
    x = 313,301,318.35/20,194.76
  6. Step 6: Final answer
    x = 15,513.99

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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.