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Finding the Fourth Proportional to 20,269.00, 27,974.03 and 11,317.08

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Solution

The fourth proportional to 20,269.00, 27,974.03 and 11,317.08 is: 15,619.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,269.00 : 27,974.03 = 11,317.08 : x
  2. Step 2: Convert to fraction form
    20,269.00/27,974.03 = 11,317.08/x
  3. Step 3: Cross multiply
    20,269.00x = 27,974.03 × 11,317.08
  4. Step 4: Simplify right side
    20,269.00x = 316,584,383.75
  5. Step 5: Solve for x
    x = 316,584,383.75/20,269.00
  6. Step 6: Final answer
    x = 15,619.14

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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.