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Finding the Fourth Proportional to 12,698.74, 17,522.73 and 7,392.70

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Solution

The fourth proportional to 12,698.74, 17,522.73 and 7,392.70 is: 10,201.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,698.74 : 17,522.73 = 7,392.70 : x
  2. Step 2: Convert to fraction form
    12,698.74/17,522.73 = 7,392.70/x
  3. Step 3: Cross multiply
    12,698.74x = 17,522.73 × 7,392.70
  4. Step 4: Simplify right side
    12,698.74x = 129,540,286.07
  5. Step 5: Solve for x
    x = 129,540,286.07/12,698.74
  6. Step 6: Final answer
    x = 10,201.03

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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.