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Finding the Fourth Proportional to 12,794.40, 17,626.02 and 12,203.88

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Solution

The fourth proportional to 12,794.40, 17,626.02 and 12,203.88 is: 16,812.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,794.40 : 17,626.02 = 12,203.88 : x
  2. Step 2: Convert to fraction form
    12,794.40/17,626.02 = 12,203.88/x
  3. Step 3: Cross multiply
    12,794.40x = 17,626.02 × 12,203.88
  4. Step 4: Simplify right side
    12,794.40x = 215,105,832.96
  5. Step 5: Solve for x
    x = 215,105,832.96/12,794.40
  6. Step 6: Final answer
    x = 16,812.50

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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.