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Finding the Fourth Proportional to 19,993.88, 27,591.59 and 11,041.40

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Solution

The fourth proportional to 19,993.88, 27,591.59 and 11,041.40 is: 15,237.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,993.88 : 27,591.59 = 11,041.40 : x
  2. Step 2: Convert to fraction form
    19,993.88/27,591.59 = 11,041.40/x
  3. Step 3: Cross multiply
    19,993.88x = 27,591.59 × 11,041.40
  4. Step 4: Simplify right side
    19,993.88x = 304,649,781.83
  5. Step 5: Solve for x
    x = 304,649,781.83/19,993.88
  6. Step 6: Final answer
    x = 15,237.15

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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.