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Finding the Fourth Proportional to 2,579.84, 3,560.64 and 2,026.88

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Solution

The fourth proportional to 2,579.84, 3,560.64 and 2,026.88 is: 2,797.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,579.84 : 3,560.64 = 2,026.88 : x
  2. Step 2: Convert to fraction form
    2,579.84/3,560.64 = 2,026.88/x
  3. Step 3: Cross multiply
    2,579.84x = 3,560.64 × 2,026.88
  4. Step 4: Simplify right side
    2,579.84x = 7,216,990.00
  5. Step 5: Solve for x
    x = 7,216,990.00/2,579.84
  6. Step 6: Final answer
    x = 2,797.46

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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.