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Finding the Fourth Proportional to 2,908.84, 4,014.28 and 1,649.86

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Solution

The fourth proportional to 2,908.84, 4,014.28 and 1,649.86 is: 2,276.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,908.84 : 4,014.28 = 1,649.86 : x
  2. Step 2: Convert to fraction form
    2,908.84/4,014.28 = 1,649.86/x
  3. Step 3: Cross multiply
    2,908.84x = 4,014.28 × 1,649.86
  4. Step 4: Simplify right side
    2,908.84x = 6,623,000.00
  5. Step 5: Solve for x
    x = 6,623,000.00/2,908.84
  6. Step 6: Final answer
    x = 2,276.85

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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.