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Finding the Fourth Proportional to 12,863.26, 17,751.98 and 7,197.67

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Solution

The fourth proportional to 12,863.26, 17,751.98 and 7,197.67 is: 9,933.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,863.26 : 17,751.98 = 7,197.67 : x
  2. Step 2: Convert to fraction form
    12,863.26/17,751.98 = 7,197.67/x
  3. Step 3: Cross multiply
    12,863.26x = 17,751.98 × 7,197.67
  4. Step 4: Simplify right side
    12,863.26x = 127,772,893.89
  5. Step 5: Solve for x
    x = 127,772,893.89/12,863.26
  6. Step 6: Final answer
    x = 9,933.17

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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.