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Finding the Fourth Proportional to 4,883.64, 6,739.36 and 2,645.47

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Solution

The fourth proportional to 4,883.64, 6,739.36 and 2,645.47 is: 3,650.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,883.64 : 6,739.36 = 2,645.47 : x
  2. Step 2: Convert to fraction form
    4,883.64/6,739.36 = 2,645.47/x
  3. Step 3: Cross multiply
    4,883.64x = 6,739.36 × 2,645.47
  4. Step 4: Simplify right side
    4,883.64x = 17,828,774.70
  5. Step 5: Solve for x
    x = 17,828,774.70/4,883.64
  6. Step 6: Final answer
    x = 3,650.71

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1.5x scale

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.