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Finding the Fourth Proportional to 19,601.48, 27,048.09 and 11,101.90

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Solution

The fourth proportional to 19,601.48, 27,048.09 and 11,101.90 is: 15,319.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,601.48 : 27,048.09 = 11,101.90 : x
  2. Step 2: Convert to fraction form
    19,601.48/27,048.09 = 11,101.90/x
  3. Step 3: Cross multiply
    19,601.48x = 27,048.09 × 11,101.90
  4. Step 4: Simplify right side
    19,601.48x = 300,285,240.20
  5. Step 5: Solve for x
    x = 300,285,240.20/19,601.48
  6. Step 6: Final answer
    x = 15,319.52

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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.