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Finding the Fourth Proportional to 3,820.48, 5,732.16 and 1,768

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Solution

The fourth proportional to 3,820.48, 5,732.16 and 1,768 is: 2,652.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,820.48 : 5,732.16 = 1,768 : x
  2. Step 2: Convert to fraction form
    3,820.48/5,732.16 = 1,768/x
  3. Step 3: Cross multiply
    3,820.48x = 5,732.16 × 1,768
  4. Step 4: Simplify right side
    3,820.48x = 10,134,458.88
  5. Step 5: Solve for x
    x = 10,134,458.88/3,820.48
  6. Step 6: Final answer
    x = 2,652.67

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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.