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Finding the Fourth Proportional to 12,950.97, 17,872.23 and 7,361.97

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Solution

The fourth proportional to 12,950.97, 17,872.23 and 7,361.97 is: 10,159.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,950.97 : 17,872.23 = 7,361.97 : x
  2. Step 2: Convert to fraction form
    12,950.97/17,872.23 = 7,361.97/x
  3. Step 3: Cross multiply
    12,950.97x = 17,872.23 × 7,361.97
  4. Step 4: Simplify right side
    12,950.97x = 131,574,821.09
  5. Step 5: Solve for x
    x = 131,574,821.09/12,950.97
  6. Step 6: Final answer
    x = 10,159.46

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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.