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Finding the Fourth Proportional to 12,365.56, 18,551.22 and 3,601.40

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Solution

The fourth proportional to 12,365.56, 18,551.22 and 3,601.40 is: 5,402.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,365.56 : 18,551.22 = 3,601.40 : x
  2. Step 2: Convert to fraction form
    12,365.56/18,551.22 = 3,601.40/x
  3. Step 3: Cross multiply
    12,365.56x = 18,551.22 × 3,601.40
  4. Step 4: Simplify right side
    12,365.56x = 66,810,363.71
  5. Step 5: Solve for x
    x = 66,810,363.71/12,365.56
  6. Step 6: Final answer
    x = 5,402.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.