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Finding the Fourth Proportional to 4,739.52, 6,540.56 and 2,643.64

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Solution

The fourth proportional to 4,739.52, 6,540.56 and 2,643.64 is: 3,648.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,739.52 : 6,540.56 = 2,643.64 : x
  2. Step 2: Convert to fraction form
    4,739.52/6,540.56 = 2,643.64/x
  3. Step 3: Cross multiply
    4,739.52x = 6,540.56 × 2,643.64
  4. Step 4: Simplify right side
    4,739.52x = 17,290,886.04
  5. Step 5: Solve for x
    x = 17,290,886.04/4,739.52
  6. Step 6: Final answer
    x = 3,648.24

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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.