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Finding the Fourth Proportional to 3,859.58, 5,790.26 and 1,262.50

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Solution

The fourth proportional to 3,859.58, 5,790.26 and 1,262.50 is: 1,894.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,859.58 : 5,790.26 = 1,262.50 : x
  2. Step 2: Convert to fraction form
    3,859.58/5,790.26 = 1,262.50/x
  3. Step 3: Cross multiply
    3,859.58x = 5,790.26 × 1,262.50
  4. Step 4: Simplify right side
    3,859.58x = 7,310,203.25
  5. Step 5: Solve for x
    x = 7,310,203.25/3,859.58
  6. Step 6: Final answer
    x = 1,894.04

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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.