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Finding the Fourth Proportional to 7,605.90, 11,411.89 and 3,226.43

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Solution

The fourth proportional to 7,605.90, 11,411.89 and 3,226.43 is: 4,840.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,605.90 : 11,411.89 = 3,226.43 : x
  2. Step 2: Convert to fraction form
    7,605.90/11,411.89 = 3,226.43/x
  3. Step 3: Cross multiply
    7,605.90x = 11,411.89 × 3,226.43
  4. Step 4: Simplify right side
    7,605.90x = 36,819,684.72
  5. Step 5: Solve for x
    x = 36,819,684.72/7,605.90
  6. Step 6: Final answer
    x = 4,840.94

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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.