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Finding the Fourth Proportional to 19,710.91, 27,201.17 and 10,758.63

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Solution

The fourth proportional to 19,710.91, 27,201.17 and 10,758.63 is: 14,846.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,710.91 : 27,201.17 = 10,758.63 : x
  2. Step 2: Convert to fraction form
    19,710.91/27,201.17 = 10,758.63/x
  3. Step 3: Cross multiply
    19,710.91x = 27,201.17 × 10,758.63
  4. Step 4: Simplify right side
    19,710.91x = 292,647,323.60
  5. Step 5: Solve for x
    x = 292,647,323.60/19,710.91
  6. Step 6: Final answer
    x = 14,846.97

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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.