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Finding the Fourth Proportional to 6,291.13, 8,682.12 and 3,496.63

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Solution

The fourth proportional to 6,291.13, 8,682.12 and 3,496.63 is: 4,825.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,291.13 : 8,682.12 = 3,496.63 : x
  2. Step 2: Convert to fraction form
    6,291.13/8,682.12 = 3,496.63/x
  3. Step 3: Cross multiply
    6,291.13x = 8,682.12 × 3,496.63
  4. Step 4: Simplify right side
    6,291.13x = 30,358,161.26
  5. Step 5: Solve for x
    x = 30,358,161.26/6,291.13
  6. Step 6: Final answer
    x = 4,825.55

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Double scale
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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.