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Finding the Fourth Proportional to 4,872.45, 6,719.09 and 2,883.09

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Solution

The fourth proportional to 4,872.45, 6,719.09 and 2,883.09 is: 3,975.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,872.45 : 6,719.09 = 2,883.09 : x
  2. Step 2: Convert to fraction form
    4,872.45/6,719.09 = 2,883.09/x
  3. Step 3: Cross multiply
    4,872.45x = 6,719.09 × 2,883.09
  4. Step 4: Simplify right side
    4,872.45x = 19,371,726.77
  5. Step 5: Solve for x
    x = 19,371,726.77/4,872.45
  6. Step 6: Final answer
    x = 3,975.77

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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.