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Finding the Fourth Proportional to 2,695.87, 4,040.16 and 1,962.01

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Solution

The fourth proportional to 2,695.87, 4,040.16 and 1,962.01 is: 2,940.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,695.87 : 4,040.16 = 1,962.01 : x
  2. Step 2: Convert to fraction form
    2,695.87/4,040.16 = 1,962.01/x
  3. Step 3: Cross multiply
    2,695.87x = 4,040.16 × 1,962.01
  4. Step 4: Simplify right side
    2,695.87x = 7,926,834.32
  5. Step 5: Solve for x
    x = 7,926,834.32/2,695.87
  6. Step 6: Final answer
    x = 2,940.36

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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.