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Finding the Fourth Proportional to 4,295.79, 6,443.64 and 1,956.60

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Solution

The fourth proportional to 4,295.79, 6,443.64 and 1,956.60 is: 2,934.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,295.79 : 6,443.64 = 1,956.60 : x
  2. Step 2: Convert to fraction form
    4,295.79/6,443.64 = 1,956.60/x
  3. Step 3: Cross multiply
    4,295.79x = 6,443.64 × 1,956.60
  4. Step 4: Simplify right side
    4,295.79x = 12,607,626.02
  5. Step 5: Solve for x
    x = 12,607,626.02/4,295.79
  6. Step 6: Final answer
    x = 2,934.88

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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.