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Finding the Fourth Proportional to 19,453.56, 27,027.15 and 19,220.28

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Solution

The fourth proportional to 19,453.56, 27,027.15 and 19,220.28 is: 26,703.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,453.56 : 27,027.15 = 19,220.28 : x
  2. Step 2: Convert to fraction form
    19,453.56/27,027.15 = 19,220.28/x
  3. Step 3: Cross multiply
    19,453.56x = 27,027.15 × 19,220.28
  4. Step 4: Simplify right side
    19,453.56x = 519,469,390.60
  5. Step 5: Solve for x
    x = 519,469,390.60/19,453.56
  6. Step 6: Final answer
    x = 26,703.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.