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Finding the Fourth Proportional to 7,296.60, 10,938.42 and 3,395.64

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Solution

The fourth proportional to 7,296.60, 10,938.42 and 3,395.64 is: 5,090.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,296.60 : 10,938.42 = 3,395.64 : x
  2. Step 2: Convert to fraction form
    7,296.60/10,938.42 = 3,395.64/x
  3. Step 3: Cross multiply
    7,296.60x = 10,938.42 × 3,395.64
  4. Step 4: Simplify right side
    7,296.60x = 37,142,936.49
  5. Step 5: Solve for x
    x = 37,142,936.49/7,296.60
  6. Step 6: Final answer
    x = 5,090.44

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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.