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Finding the Fourth Proportional to 22,277.81, 30,739.46 and 12,713.33

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Solution

The fourth proportional to 22,277.81, 30,739.46 and 12,713.33 is: 17,542.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,277.81 : 30,739.46 = 12,713.33 : x
  2. Step 2: Convert to fraction form
    22,277.81/30,739.46 = 12,713.33/x
  3. Step 3: Cross multiply
    22,277.81x = 30,739.46 × 12,713.33
  4. Step 4: Simplify right side
    22,277.81x = 390,800,899.00
  5. Step 5: Solve for x
    x = 390,800,899.00/22,277.81
  6. Step 6: Final answer
    x = 17,542.16

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.