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Finding the Fourth Proportional to 19,691.01, 27,173.81 and 10,738.49

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Solution

The fourth proportional to 19,691.01, 27,173.81 and 10,738.49 is: 14,819.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,691.01 : 27,173.81 = 10,738.49 : x
  2. Step 2: Convert to fraction form
    19,691.01/27,173.81 = 10,738.49/x
  3. Step 3: Cross multiply
    19,691.01x = 27,173.81 × 10,738.49
  4. Step 4: Simplify right side
    19,691.01x = 291,805,577.92
  5. Step 5: Solve for x
    x = 291,805,577.92/19,691.01
  6. Step 6: Final answer
    x = 14,819.23

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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.