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Finding the Fourth Proportional to 19,687.01, 27,168.05 and 10,734.51

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Solution

The fourth proportional to 19,687.01, 27,168.05 and 10,734.51 is: 14,813.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,687.01 : 27,168.05 = 10,734.51 : x
  2. Step 2: Convert to fraction form
    19,687.01/27,168.05 = 10,734.51/x
  3. Step 3: Cross multiply
    19,687.01x = 27,168.05 × 10,734.51
  4. Step 4: Simplify right side
    19,687.01x = 291,635,650.73
  5. Step 5: Solve for x
    x = 291,635,650.73/19,687.01
  6. Step 6: Final answer
    x = 14,813.61

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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.