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Finding the Fourth Proportional to 12,058.67, 16,640.94 and 6,681.45

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Solution

The fourth proportional to 12,058.67, 16,640.94 and 6,681.45 is: 9,220.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,058.67 : 16,640.94 = 6,681.45 : x
  2. Step 2: Convert to fraction form
    12,058.67/16,640.94 = 6,681.45/x
  3. Step 3: Cross multiply
    12,058.67x = 16,640.94 × 6,681.45
  4. Step 4: Simplify right side
    12,058.67x = 111,185,608.56
  5. Step 5: Solve for x
    x = 111,185,608.56/12,058.67
  6. Step 6: Final answer
    x = 9,220.39

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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.