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Finding the Fourth Proportional to 13,794.75, 20,696.21 and 7,955.55

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Solution

The fourth proportional to 13,794.75, 20,696.21 and 7,955.55 is: 11,935.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,794.75 : 20,696.21 = 7,955.55 : x
  2. Step 2: Convert to fraction form
    13,794.75/20,696.21 = 7,955.55/x
  3. Step 3: Cross multiply
    13,794.75x = 20,696.21 × 7,955.55
  4. Step 4: Simplify right side
    13,794.75x = 164,649,693.69
  5. Step 5: Solve for x
    x = 164,649,693.69/13,794.75
  6. Step 6: Final answer
    x = 11,935.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.