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Finding the Fourth Proportional to 35,645.88, 49,190.72 and 19,729.99

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Solution

The fourth proportional to 35,645.88, 49,190.72 and 19,729.99 is: 27,227.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,645.88 : 49,190.72 = 19,729.99 : x
  2. Step 2: Convert to fraction form
    35,645.88/49,190.72 = 19,729.99/x
  3. Step 3: Cross multiply
    35,645.88x = 49,190.72 × 19,729.99
  4. Step 4: Simplify right side
    35,645.88x = 970,532,413.69
  5. Step 5: Solve for x
    x = 970,532,413.69/35,645.88
  6. Step 6: Final answer
    x = 27,227.06

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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.