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Finding the Fourth Proportional to 12,361.32, 17,074.98 and 9,212.04

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Solution

The fourth proportional to 12,361.32, 17,074.98 and 9,212.04 is: 12,724.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,361.32 : 17,074.98 = 9,212.04 : x
  2. Step 2: Convert to fraction form
    12,361.32/17,074.98 = 9,212.04/x
  3. Step 3: Cross multiply
    12,361.32x = 17,074.98 × 9,212.04
  4. Step 4: Simplify right side
    12,361.32x = 157,295,398.76
  5. Step 5: Solve for x
    x = 157,295,398.76/12,361.32
  6. Step 6: Final answer
    x = 12,724.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.