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Finding the Fourth Proportional to 40,296.78, 60,433.02 and 16,918.02

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Solution

The fourth proportional to 40,296.78, 60,433.02 and 16,918.02 is: 25,371.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,296.78 : 60,433.02 = 16,918.02 : x
  2. Step 2: Convert to fraction form
    40,296.78/60,433.02 = 16,918.02/x
  3. Step 3: Cross multiply
    40,296.78x = 60,433.02 × 16,918.02
  4. Step 4: Simplify right side
    40,296.78x = 1,022,407,041.02
  5. Step 5: Solve for x
    x = 1,022,407,041.02/40,296.78
  6. Step 6: Final answer
    x = 25,371.93

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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.