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Finding the Fourth Proportional to 9,481.60, 14,227.80 and 3,642.40

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Solution

The fourth proportional to 9,481.60, 14,227.80 and 3,642.40 is: 5,465.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,481.60 : 14,227.80 = 3,642.40 : x
  2. Step 2: Convert to fraction form
    9,481.60/14,227.80 = 3,642.40/x
  3. Step 3: Cross multiply
    9,481.60x = 14,227.80 × 3,642.40
  4. Step 4: Simplify right side
    9,481.60x = 51,823,338.72
  5. Step 5: Solve for x
    x = 51,823,338.72/9,481.60
  6. Step 6: Final answer
    x = 5,465.67

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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.