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Finding the Fourth Proportional to 22,058.40, 30,440.76 and 11,986.83

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Solution

The fourth proportional to 22,058.40, 30,440.76 and 11,986.83 is: 16,541.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,058.40 : 30,440.76 = 11,986.83 : x
  2. Step 2: Convert to fraction form
    22,058.40/30,440.76 = 11,986.83/x
  3. Step 3: Cross multiply
    22,058.40x = 30,440.76 × 11,986.83
  4. Step 4: Simplify right side
    22,058.40x = 364,888,215.19
  5. Step 5: Solve for x
    x = 364,888,215.19/22,058.40
  6. Step 6: Final answer
    x = 16,541.92

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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.