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Finding the Fourth Proportional to 4,936.76, 7,405.13 and 1,649.10

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Solution

The fourth proportional to 4,936.76, 7,405.13 and 1,649.10 is: 2,473.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,936.76 : 7,405.13 = 1,649.10 : x
  2. Step 2: Convert to fraction form
    4,936.76/7,405.13 = 1,649.10/x
  3. Step 3: Cross multiply
    4,936.76x = 7,405.13 × 1,649.10
  4. Step 4: Simplify right side
    4,936.76x = 12,211,799.88
  5. Step 5: Solve for x
    x = 12,211,799.88/4,936.76
  6. Step 6: Final answer
    x = 2,473.65

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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.