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Finding the Fourth Proportional to 1,895.63, 2,842.00 and 1,028.75

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Solution

The fourth proportional to 1,895.63, 2,842.00 and 1,028.75 is: 1,542.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,895.63 : 2,842.00 = 1,028.75 : x
  2. Step 2: Convert to fraction form
    1,895.63/2,842.00 = 1,028.75/x
  3. Step 3: Cross multiply
    1,895.63x = 2,842.00 × 1,028.75
  4. Step 4: Simplify right side
    1,895.63x = 2,923,690.72
  5. Step 5: Solve for x
    x = 2,923,690.72/1,895.63
  6. Step 6: Final answer
    x = 1,542.34

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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.