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Finding the Fourth Proportional to 12,361.51, 17,058.90 and 6,696.31

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Solution

The fourth proportional to 12,361.51, 17,058.90 and 6,696.31 is: 9,240.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,361.51 : 17,058.90 = 6,696.31 : x
  2. Step 2: Convert to fraction form
    12,361.51/17,058.90 = 6,696.31/x
  3. Step 3: Cross multiply
    12,361.51x = 17,058.90 × 6,696.31
  4. Step 4: Simplify right side
    12,361.51x = 114,231,673.12
  5. Step 5: Solve for x
    x = 114,231,673.12/12,361.51
  6. Step 6: Final answer
    x = 9,240.91

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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.