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Finding the Fourth Proportional to 7,797.60, 11,696.28 and 5,292.56

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Solution

The fourth proportional to 7,797.60, 11,696.28 and 5,292.56 is: 7,938.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,797.60 : 11,696.28 = 5,292.56 : x
  2. Step 2: Convert to fraction form
    7,797.60/11,696.28 = 5,292.56/x
  3. Step 3: Cross multiply
    7,797.60x = 11,696.28 × 5,292.56
  4. Step 4: Simplify right side
    7,797.60x = 61,903,263.68
  5. Step 5: Solve for x
    x = 61,903,263.68/7,797.60
  6. Step 6: Final answer
    x = 7,938.76

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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.