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Finding the Fourth Proportional to 2,739.84, 4,109.76 and 1,008.06

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Solution

The fourth proportional to 2,739.84, 4,109.76 and 1,008.06 is: 1,512.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,739.84 : 4,109.76 = 1,008.06 : x
  2. Step 2: Convert to fraction form
    2,739.84/4,109.76 = 1,008.06/x
  3. Step 3: Cross multiply
    2,739.84x = 4,109.76 × 1,008.06
  4. Step 4: Simplify right side
    2,739.84x = 4,142,884.67
  5. Step 5: Solve for x
    x = 4,142,884.67/2,739.84
  6. Step 6: Final answer
    x = 1,512.09

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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.