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Finding the Fourth Proportional to 11,605.65, 17,410.97 and 3,706.31

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Solution

The fourth proportional to 11,605.65, 17,410.97 and 3,706.31 is: 5,560.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,605.65 : 17,410.97 = 3,706.31 : x
  2. Step 2: Convert to fraction form
    11,605.65/17,410.97 = 3,706.31/x
  3. Step 3: Cross multiply
    11,605.65x = 17,410.97 × 3,706.31
  4. Step 4: Simplify right side
    11,605.65x = 64,530,365.17
  5. Step 5: Solve for x
    x = 64,530,365.17/11,605.65
  6. Step 6: Final answer
    x = 5,560.25

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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.