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Finding the Fourth Proportional to 4,873.77, 6,721.98 and 4,202.69

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Solution

The fourth proportional to 4,873.77, 6,721.98 and 4,202.69 is: 5,796.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,873.77 : 6,721.98 = 4,202.69 : x
  2. Step 2: Convert to fraction form
    4,873.77/6,721.98 = 4,202.69/x
  3. Step 3: Cross multiply
    4,873.77x = 6,721.98 × 4,202.69
  4. Step 4: Simplify right side
    4,873.77x = 28,250,389.72
  5. Step 5: Solve for x
    x = 28,250,389.72/4,873.77
  6. Step 6: Final answer
    x = 5,796.41

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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.