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Finding the Fourth Proportional to 1,958.69, 2,703.16 and 1,074.66

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Solution

The fourth proportional to 1,958.69, 2,703.16 and 1,074.66 is: 1,483.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,958.69 : 2,703.16 = 1,074.66 : x
  2. Step 2: Convert to fraction form
    1,958.69/2,703.16 = 1,074.66/x
  3. Step 3: Cross multiply
    1,958.69x = 2,703.16 × 1,074.66
  4. Step 4: Simplify right side
    1,958.69x = 2,904,972.55
  5. Step 5: Solve for x
    x = 2,904,972.55/1,958.69
  6. Step 6: Final answer
    x = 1,483.12

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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.