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Finding the Fourth Proportional to 2,482.06, 3,722.40 and 838.26

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Solution

The fourth proportional to 2,482.06, 3,722.40 and 838.26 is: 1,257.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,482.06 : 3,722.40 = 838.26 : x
  2. Step 2: Convert to fraction form
    2,482.06/3,722.40 = 838.26/x
  3. Step 3: Cross multiply
    2,482.06x = 3,722.40 × 838.26
  4. Step 4: Simplify right side
    2,482.06x = 3,120,339.02
  5. Step 5: Solve for x
    x = 3,120,339.02/2,482.06
  6. Step 6: Final answer
    x = 1,257.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.