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Finding the Fourth Proportional to 19,690.94, 27,174.01 and 10,738.82

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Solution

The fourth proportional to 19,690.94, 27,174.01 and 10,738.82 is: 14,819.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,690.94 : 27,174.01 = 10,738.82 : x
  2. Step 2: Convert to fraction form
    19,690.94/27,174.01 = 10,738.82/x
  3. Step 3: Cross multiply
    19,690.94x = 27,174.01 × 10,738.82
  4. Step 4: Simplify right side
    19,690.94x = 291,816,802.07
  5. Step 5: Solve for x
    x = 291,816,802.07/19,690.94
  6. Step 6: Final answer
    x = 14,819.85

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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.