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Finding the Fourth Proportional to 12,168.74, 16,792.69 and 6,865.26

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Solution

The fourth proportional to 12,168.74, 16,792.69 and 6,865.26 is: 9,473.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,168.74 : 16,792.69 = 6,865.26 : x
  2. Step 2: Convert to fraction form
    12,168.74/16,792.69 = 6,865.26/x
  3. Step 3: Cross multiply
    12,168.74x = 16,792.69 × 6,865.26
  4. Step 4: Simplify right side
    12,168.74x = 115,286,228.76
  5. Step 5: Solve for x
    x = 115,286,228.76/12,168.74
  6. Step 6: Final answer
    x = 9,473.97

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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.