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Finding the Fourth Proportional to 9,696.51, 13,379.18 and 6,158.43

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Solution

The fourth proportional to 9,696.51, 13,379.18 and 6,158.43 is: 8,497.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,696.51 : 13,379.18 = 6,158.43 : x
  2. Step 2: Convert to fraction form
    9,696.51/13,379.18 = 6,158.43/x
  3. Step 3: Cross multiply
    9,696.51x = 13,379.18 × 6,158.43
  4. Step 4: Simplify right side
    9,696.51x = 82,394,712.70
  5. Step 5: Solve for x
    x = 82,394,712.70/9,696.51
  6. Step 6: Final answer
    x = 8,497.36

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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.