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Finding the Fourth Proportional to 2,068.47, 3,102.60 and 835.23

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Solution

The fourth proportional to 2,068.47, 3,102.60 and 835.23 is: 1,252.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,068.47 : 3,102.60 = 835.23 : x
  2. Step 2: Convert to fraction form
    2,068.47/3,102.60 = 835.23/x
  3. Step 3: Cross multiply
    2,068.47x = 3,102.60 × 835.23
  4. Step 4: Simplify right side
    2,068.47x = 2,591,384.60
  5. Step 5: Solve for x
    x = 2,591,384.60/2,068.47
  6. Step 6: Final answer
    x = 1,252.80

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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.