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Finding the Fourth Proportional to 26,607.71, 36,687.44 and 19,881.47

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Solution

The fourth proportional to 26,607.71, 36,687.44 and 19,881.47 is: 27,413.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,607.71 : 36,687.44 = 19,881.47 : x
  2. Step 2: Convert to fraction form
    26,607.71/36,687.44 = 19,881.47/x
  3. Step 3: Cross multiply
    26,607.71x = 36,687.44 × 19,881.47
  4. Step 4: Simplify right side
    26,607.71x = 729,400,104.00
  5. Step 5: Solve for x
    x = 729,400,104.00/26,607.71
  6. Step 6: Final answer
    x = 27,413.12

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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.