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Finding the Fourth Proportional to 8,402.44, 12,605.74 and 3,473.49

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Solution

The fourth proportional to 8,402.44, 12,605.74 and 3,473.49 is: 5,211.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,402.44 : 12,605.74 = 3,473.49 : x
  2. Step 2: Convert to fraction form
    8,402.44/12,605.74 = 3,473.49/x
  3. Step 3: Cross multiply
    8,402.44x = 12,605.74 × 3,473.49
  4. Step 4: Simplify right side
    8,402.44x = 43,785,903.15
  5. Step 5: Solve for x
    x = 43,785,903.15/8,402.44
  6. Step 6: Final answer
    x = 5,211.09

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1.5x scale

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.