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Finding the Fourth Proportional to 2,695.50, 4,043.25 and 846.59

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Solution

The fourth proportional to 2,695.50, 4,043.25 and 846.59 is: 1,269.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,695.50 : 4,043.25 = 846.59 : x
  2. Step 2: Convert to fraction form
    2,695.50/4,043.25 = 846.59/x
  3. Step 3: Cross multiply
    2,695.50x = 4,043.25 × 846.59
  4. Step 4: Simplify right side
    2,695.50x = 3,422,954.80
  5. Step 5: Solve for x
    x = 3,422,954.80/2,695.50
  6. Step 6: Final answer
    x = 1,269.88

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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.