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Finding the Fourth Proportional to 4,738.76, 7,109.27 and 1,451.84

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Solution

The fourth proportional to 4,738.76, 7,109.27 and 1,451.84 is: 2,178.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,738.76 : 7,109.27 = 1,451.84 : x
  2. Step 2: Convert to fraction form
    4,738.76/7,109.27 = 1,451.84/x
  3. Step 3: Cross multiply
    4,738.76x = 7,109.27 × 1,451.84
  4. Step 4: Simplify right side
    4,738.76x = 10,321,479.75
  5. Step 5: Solve for x
    x = 10,321,479.75/4,738.76
  6. Step 6: Final answer
    x = 2,178.10

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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.