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Finding the Fourth Proportional to 13,241.76, 18,272.44 and 7,273.44

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Solution

The fourth proportional to 13,241.76, 18,272.44 and 7,273.44 is: 10,036.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,241.76 : 18,272.44 = 7,273.44 : x
  2. Step 2: Convert to fraction form
    13,241.76/18,272.44 = 7,273.44/x
  3. Step 3: Cross multiply
    13,241.76x = 18,272.44 × 7,273.44
  4. Step 4: Simplify right side
    13,241.76x = 132,903,495.99
  5. Step 5: Solve for x
    x = 132,903,495.99/13,241.76
  6. Step 6: Final answer
    x = 10,036.69

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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.