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Finding the Fourth Proportional to 9,394.70, 12,965.07 and 5,202.95

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Solution

The fourth proportional to 9,394.70, 12,965.07 and 5,202.95 is: 7,180.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,394.70 : 12,965.07 = 5,202.95 : x
  2. Step 2: Convert to fraction form
    9,394.70/12,965.07 = 5,202.95/x
  3. Step 3: Cross multiply
    9,394.70x = 12,965.07 × 5,202.95
  4. Step 4: Simplify right side
    9,394.70x = 67,456,546.13
  5. Step 5: Solve for x
    x = 67,456,546.13/9,394.70
  6. Step 6: Final answer
    x = 7,180.28

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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.