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Finding the Fourth Proportional to 1,843.22, 2,543.64 and 1,015.22

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Solution

The fourth proportional to 1,843.22, 2,543.64 and 1,015.22 is: 1,401.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,843.22 : 2,543.64 = 1,015.22 : x
  2. Step 2: Convert to fraction form
    1,843.22/2,543.64 = 1,015.22/x
  3. Step 3: Cross multiply
    1,843.22x = 2,543.64 × 1,015.22
  4. Step 4: Simplify right side
    1,843.22x = 2,582,352.92
  5. Step 5: Solve for x
    x = 2,582,352.92/1,843.22
  6. Step 6: Final answer
    x = 1,401.00

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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.