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Finding the Fourth Proportional to 3,805.52, 5,706.72 and 1,582.84

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Solution

The fourth proportional to 3,805.52, 5,706.72 and 1,582.84 is: 2,373.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,805.52 : 5,706.72 = 1,582.84 : x
  2. Step 2: Convert to fraction form
    3,805.52/5,706.72 = 1,582.84/x
  3. Step 3: Cross multiply
    3,805.52x = 5,706.72 × 1,582.84
  4. Step 4: Simplify right side
    3,805.52x = 9,032,824.68
  5. Step 5: Solve for x
    x = 9,032,824.68/3,805.52
  6. Step 6: Final answer
    x = 2,373.61

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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.