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Finding the Fourth Proportional to 4,878.99, 6,731.20 and 3,202.67

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Solution

The fourth proportional to 4,878.99, 6,731.20 and 3,202.67 is: 4,418.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,878.99 : 6,731.20 = 3,202.67 : x
  2. Step 2: Convert to fraction form
    4,878.99/6,731.20 = 3,202.67/x
  3. Step 3: Cross multiply
    4,878.99x = 6,731.20 × 3,202.67
  4. Step 4: Simplify right side
    4,878.99x = 21,557,820.82
  5. Step 5: Solve for x
    x = 21,557,820.82/4,878.99
  6. Step 6: Final answer
    x = 4,418.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.