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Finding the Fourth Proportional to 19,593.21, 27,046.91 and 13,228.43

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Solution

The fourth proportional to 19,593.21, 27,046.91 and 13,228.43 is: 18,260.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,593.21 : 27,046.91 = 13,228.43 : x
  2. Step 2: Convert to fraction form
    19,593.21/27,046.91 = 13,228.43/x
  3. Step 3: Cross multiply
    19,593.21x = 27,046.91 × 13,228.43
  4. Step 4: Simplify right side
    19,593.21x = 357,788,053.49
  5. Step 5: Solve for x
    x = 357,788,053.49/19,593.21
  6. Step 6: Final answer
    x = 18,260.82

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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.