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Finding the Fourth Proportional to 4,159.76, 5,739.72 and 2,480.54

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Solution

The fourth proportional to 4,159.76, 5,739.72 and 2,480.54 is: 3,422.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,159.76 : 5,739.72 = 2,480.54 : x
  2. Step 2: Convert to fraction form
    4,159.76/5,739.72 = 2,480.54/x
  3. Step 3: Cross multiply
    4,159.76x = 5,739.72 × 2,480.54
  4. Step 4: Simplify right side
    4,159.76x = 14,237,605.05
  5. Step 5: Solve for x
    x = 14,237,605.05/4,159.76
  6. Step 6: Final answer
    x = 3,422.70

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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.