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Finding the Fourth Proportional to 7,969.01, 11,949.05 and 7,069.70

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Solution

The fourth proportional to 7,969.01, 11,949.05 and 7,069.70 is: 10,600.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,969.01 : 11,949.05 = 7,069.70 : x
  2. Step 2: Convert to fraction form
    7,969.01/11,949.05 = 7,069.70/x
  3. Step 3: Cross multiply
    7,969.01x = 11,949.05 × 7,069.70
  4. Step 4: Simplify right side
    7,969.01x = 84,476,246.33
  5. Step 5: Solve for x
    x = 84,476,246.33/7,969.01
  6. Step 6: Final answer
    x = 10,600.60

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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.