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Finding the Fourth Proportional to 1,768.43, 2,652.95 and 795.21

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Solution

The fourth proportional to 1,768.43, 2,652.95 and 795.21 is: 1,192.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,768.43 : 2,652.95 = 795.21 : x
  2. Step 2: Convert to fraction form
    1,768.43/2,652.95 = 795.21/x
  3. Step 3: Cross multiply
    1,768.43x = 2,652.95 × 795.21
  4. Step 4: Simplify right side
    1,768.43x = 2,109,652.37
  5. Step 5: Solve for x
    x = 2,109,652.37/1,768.43
  6. Step 6: Final answer
    x = 1,192.95

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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.