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Finding the Fourth Proportional to 3,762.76, 5,645.30 and 1,684.52

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Solution

The fourth proportional to 3,762.76, 5,645.30 and 1,684.52 is: 2,527.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,762.76 : 5,645.30 = 1,684.52 : x
  2. Step 2: Convert to fraction form
    3,762.76/5,645.30 = 1,684.52/x
  3. Step 3: Cross multiply
    3,762.76x = 5,645.30 × 1,684.52
  4. Step 4: Simplify right side
    3,762.76x = 9,509,620.76
  5. Step 5: Solve for x
    x = 9,509,620.76/3,762.76
  6. Step 6: Final answer
    x = 2,527.30

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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.