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Finding the Fourth Proportional to 19,672.76, 27,151.92 and 11,605.92

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Solution

The fourth proportional to 19,672.76, 27,151.92 and 11,605.92 is: 16,018.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,672.76 : 27,151.92 = 11,605.92 : x
  2. Step 2: Convert to fraction form
    19,672.76/27,151.92 = 11,605.92/x
  3. Step 3: Cross multiply
    19,672.76x = 27,151.92 × 11,605.92
  4. Step 4: Simplify right side
    19,672.76x = 315,123,011.37
  5. Step 5: Solve for x
    x = 315,123,011.37/19,672.76
  6. Step 6: Final answer
    x = 16,018.24

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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.