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Finding the Fourth Proportional to 12,680.55, 17,498.16 and 7,014.33

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Solution

The fourth proportional to 12,680.55, 17,498.16 and 7,014.33 is: 9,679.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,680.55 : 17,498.16 = 7,014.33 : x
  2. Step 2: Convert to fraction form
    12,680.55/17,498.16 = 7,014.33/x
  3. Step 3: Cross multiply
    12,680.55x = 17,498.16 × 7,014.33
  4. Step 4: Simplify right side
    12,680.55x = 122,737,868.63
  5. Step 5: Solve for x
    x = 122,737,868.63/12,680.55
  6. Step 6: Final answer
    x = 9,679.22

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