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Finding the Fourth Proportional to 1,722.93, 2,582.97 and 682.48

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Solution

The fourth proportional to 1,722.93, 2,582.97 and 682.48 is: 1,023.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,722.93 : 2,582.97 = 682.48 : x
  2. Step 2: Convert to fraction form
    1,722.93/2,582.97 = 682.48/x
  3. Step 3: Cross multiply
    1,722.93x = 2,582.97 × 682.48
  4. Step 4: Simplify right side
    1,722.93x = 1,762,825.37
  5. Step 5: Solve for x
    x = 1,762,825.37/1,722.93
  6. Step 6: Final answer
    x = 1,023.16

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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.