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Finding the Fourth Proportional to 1,722.34, 2,584.54 and 1,582.92

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Solution

The fourth proportional to 1,722.34, 2,584.54 and 1,582.92 is: 2,375.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,722.34 : 2,584.54 = 1,582.92 : x
  2. Step 2: Convert to fraction form
    1,722.34/2,584.54 = 1,582.92/x
  3. Step 3: Cross multiply
    1,722.34x = 2,584.54 × 1,582.92
  4. Step 4: Simplify right side
    1,722.34x = 4,091,120.06
  5. Step 5: Solve for x
    x = 4,091,120.06/1,722.34
  6. Step 6: Final answer
    x = 2,375.33

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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.