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Finding the Fourth Proportional to 12,485.67, 17,230.14 and 6,896.67

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Solution

The fourth proportional to 12,485.67, 17,230.14 and 6,896.67 is: 9,517.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,485.67 : 17,230.14 = 6,896.67 : x
  2. Step 2: Convert to fraction form
    12,485.67/17,230.14 = 6,896.67/x
  3. Step 3: Cross multiply
    12,485.67x = 17,230.14 × 6,896.67
  4. Step 4: Simplify right side
    12,485.67x = 118,830,589.63
  5. Step 5: Solve for x
    x = 118,830,589.63/12,485.67
  6. Step 6: Final answer
    x = 9,517.36

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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.