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Finding the Fourth Proportional to 4,622.39, 6,371.39 and 3,612.32

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Solution

The fourth proportional to 4,622.39, 6,371.39 and 3,612.32 is: 4,979.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,622.39 : 6,371.39 = 3,612.32 : x
  2. Step 2: Convert to fraction form
    4,622.39/6,371.39 = 3,612.32/x
  3. Step 3: Cross multiply
    4,622.39x = 6,371.39 × 3,612.32
  4. Step 4: Simplify right side
    4,622.39x = 23,015,449.61
  5. Step 5: Solve for x
    x = 23,015,449.61/4,622.39
  6. Step 6: Final answer
    x = 4,979.13

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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.