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Finding the Fourth Proportional to 2,544.74, 3,817.09 and 695.80

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Solution

The fourth proportional to 2,544.74, 3,817.09 and 695.80 is: 1,043.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,544.74 : 3,817.09 = 695.80 : x
  2. Step 2: Convert to fraction form
    2,544.74/3,817.09 = 695.80/x
  3. Step 3: Cross multiply
    2,544.74x = 3,817.09 × 695.80
  4. Step 4: Simplify right side
    2,544.74x = 2,655,931.22
  5. Step 5: Solve for x
    x = 2,655,931.22/2,544.74
  6. Step 6: Final answer
    x = 1,043.69

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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.