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Finding the Fourth Proportional to 1,958.96, 2,934.12 and 1,306.64

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Solution

The fourth proportional to 1,958.96, 2,934.12 and 1,306.64 is: 1,957.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,958.96 : 2,934.12 = 1,306.64 : x
  2. Step 2: Convert to fraction form
    1,958.96/2,934.12 = 1,306.64/x
  3. Step 3: Cross multiply
    1,958.96x = 2,934.12 × 1,306.64
  4. Step 4: Simplify right side
    1,958.96x = 3,833,838.56
  5. Step 5: Solve for x
    x = 3,833,838.56/1,958.96
  6. Step 6: Final answer
    x = 1,957.08

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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.