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Finding the Fourth Proportional to 19,612.82, 27,064.89 and 10,660.11

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Solution

The fourth proportional to 19,612.82, 27,064.89 and 10,660.11 is: 14,710.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,612.82 : 27,064.89 = 10,660.11 : x
  2. Step 2: Convert to fraction form
    19,612.82/27,064.89 = 10,660.11/x
  3. Step 3: Cross multiply
    19,612.82x = 27,064.89 × 10,660.11
  4. Step 4: Simplify right side
    19,612.82x = 288,514,704.54
  5. Step 5: Solve for x
    x = 288,514,704.54/19,612.82
  6. Step 6: Final answer
    x = 14,710.52

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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.