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Finding the Fourth Proportional to 3,956.15, 5,934.63 and 1,358.75

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Solution

The fourth proportional to 3,956.15, 5,934.63 and 1,358.75 is: 2,038.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,956.15 : 5,934.63 = 1,358.75 : x
  2. Step 2: Convert to fraction form
    3,956.15/5,934.63 = 1,358.75/x
  3. Step 3: Cross multiply
    3,956.15x = 5,934.63 × 1,358.75
  4. Step 4: Simplify right side
    3,956.15x = 8,063,678.51
  5. Step 5: Solve for x
    x = 8,063,678.51/3,956.15
  6. Step 6: Final answer
    x = 2,038.26

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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.