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Finding the Fourth Proportional to 12,656.52, 18,984.80 and 3,296.52

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Solution

The fourth proportional to 12,656.52, 18,984.80 and 3,296.52 is: 4,944.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,656.52 : 18,984.80 = 3,296.52 : x
  2. Step 2: Convert to fraction form
    12,656.52/18,984.80 = 3,296.52/x
  3. Step 3: Cross multiply
    12,656.52x = 18,984.80 × 3,296.52
  4. Step 4: Simplify right side
    12,656.52x = 62,583,756.41
  5. Step 5: Solve for x
    x = 62,583,756.41/12,656.52
  6. Step 6: Final answer
    x = 4,944.78

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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.