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Finding the Fourth Proportional to 19,599.91, 27,047.49 and 11,101.90

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Solution

The fourth proportional to 19,599.91, 27,047.49 and 11,101.90 is: 15,320.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,599.91 : 27,047.49 = 11,101.90 : x
  2. Step 2: Convert to fraction form
    19,599.91/27,047.49 = 11,101.90/x
  3. Step 3: Cross multiply
    19,599.91x = 27,047.49 × 11,101.90
  4. Step 4: Simplify right side
    19,599.91x = 300,278,529.23
  5. Step 5: Solve for x
    x = 300,278,529.23/19,599.91
  6. Step 6: Final answer
    x = 15,320.40

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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.