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Finding the Fourth Proportional to 12,496.56, 18,748.08 and 3,731.28

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Solution

The fourth proportional to 12,496.56, 18,748.08 and 3,731.28 is: 5,597.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,496.56 : 18,748.08 = 3,731.28 : x
  2. Step 2: Convert to fraction form
    12,496.56/18,748.08 = 3,731.28/x
  3. Step 3: Cross multiply
    12,496.56x = 18,748.08 × 3,731.28
  4. Step 4: Simplify right side
    12,496.56x = 69,954,335.94
  5. Step 5: Solve for x
    x = 69,954,335.94/12,496.56
  6. Step 6: Final answer
    x = 5,597.89

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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.