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Finding the Fourth Proportional to 1,882.86, 2,825.10 and 1,059.90

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Solution

The fourth proportional to 1,882.86, 2,825.10 and 1,059.90 is: 1,590.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,882.86 : 2,825.10 = 1,059.90 : x
  2. Step 2: Convert to fraction form
    1,882.86/2,825.10 = 1,059.90/x
  3. Step 3: Cross multiply
    1,882.86x = 2,825.10 × 1,059.90
  4. Step 4: Simplify right side
    1,882.86x = 2,994,323.49
  5. Step 5: Solve for x
    x = 2,994,323.49/1,882.86
  6. Step 6: Final answer
    x = 1,590.31

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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.