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Finding the Fourth Proportional to 1,961.03, 2,943.54 and 1,036.41

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Solution

The fourth proportional to 1,961.03, 2,943.54 and 1,036.41 is: 1,555.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,961.03 : 2,943.54 = 1,036.41 : x
  2. Step 2: Convert to fraction form
    1,961.03/2,943.54 = 1,036.41/x
  3. Step 3: Cross multiply
    1,961.03x = 2,943.54 × 1,036.41
  4. Step 4: Simplify right side
    1,961.03x = 3,050,714.29
  5. Step 5: Solve for x
    x = 3,050,714.29/1,961.03
  6. Step 6: Final answer
    x = 1,555.67

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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.