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Finding the Fourth Proportional to 3,905.01, 5,856.44 and 1,956.69

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Solution

The fourth proportional to 3,905.01, 5,856.44 and 1,956.69 is: 2,934.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,905.01 : 5,856.44 = 1,956.69 : x
  2. Step 2: Convert to fraction form
    3,905.01/5,856.44 = 1,956.69/x
  3. Step 3: Cross multiply
    3,905.01x = 5,856.44 × 1,956.69
  4. Step 4: Simplify right side
    3,905.01x = 11,459,227.80
  5. Step 5: Solve for x
    x = 11,459,227.80/3,905.01
  6. Step 6: Final answer
    x = 2,934.49

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1.5x scale

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.