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Finding the Fourth Proportional to 3,834.86, 5,751.08 and 1,643.00

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Solution

The fourth proportional to 3,834.86, 5,751.08 and 1,643.00 is: 2,463.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,834.86 : 5,751.08 = 1,643.00 : x
  2. Step 2: Convert to fraction form
    3,834.86/5,751.08 = 1,643.00/x
  3. Step 3: Cross multiply
    3,834.86x = 5,751.08 × 1,643.00
  4. Step 4: Simplify right side
    3,834.86x = 9,448,987.47
  5. Step 5: Solve for x
    x = 9,448,987.47/3,834.86
  6. Step 6: Final answer
    x = 2,463.98

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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.