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Finding the Fourth Proportional to 9,374.80, 14,062.20 and 3,826.30

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Solution

The fourth proportional to 9,374.80, 14,062.20 and 3,826.30 is: 5,739.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,374.80 : 14,062.20 = 3,826.30 : x
  2. Step 2: Convert to fraction form
    9,374.80/14,062.20 = 3,826.30/x
  3. Step 3: Cross multiply
    9,374.80x = 14,062.20 × 3,826.30
  4. Step 4: Simplify right side
    9,374.80x = 53,806,195.86
  5. Step 5: Solve for x
    x = 53,806,195.86/9,374.80
  6. Step 6: Final answer
    x = 5,739.45

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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.