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Finding the Fourth Proportional to 7,296.80, 10,923.60 and 6,869.60

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Solution

The fourth proportional to 7,296.80, 10,923.60 and 6,869.60 is: 10,284.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,296.80 : 10,923.60 = 6,869.60 : x
  2. Step 2: Convert to fraction form
    7,296.80/10,923.60 = 6,869.60/x
  3. Step 3: Cross multiply
    7,296.80x = 10,923.60 × 6,869.60
  4. Step 4: Simplify right side
    7,296.80x = 75,040,762.56
  5. Step 5: Solve for x
    x = 75,040,762.56/7,296.80
  6. Step 6: Final answer
    x = 10,284.06

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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.