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Finding the Fourth Proportional to 4,372.77, 6,560.79 and 2,619.01

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Solution

The fourth proportional to 4,372.77, 6,560.79 and 2,619.01 is: 3,929.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,372.77 : 6,560.79 = 2,619.01 : x
  2. Step 2: Convert to fraction form
    4,372.77/6,560.79 = 2,619.01/x
  3. Step 3: Cross multiply
    4,372.77x = 6,560.79 × 2,619.01
  4. Step 4: Simplify right side
    4,372.77x = 17,182,774.62
  5. Step 5: Solve for x
    x = 17,182,774.62/4,372.77
  6. Step 6: Final answer
    x = 3,929.49

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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.