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Finding the Fourth Proportional to 4,889.54, 6,746.91 and 2,765.36

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Solution

The fourth proportional to 4,889.54, 6,746.91 and 2,765.36 is: 3,815.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,889.54 : 6,746.91 = 2,765.36 : x
  2. Step 2: Convert to fraction form
    4,889.54/6,746.91 = 2,765.36/x
  3. Step 3: Cross multiply
    4,889.54x = 6,746.91 × 2,765.36
  4. Step 4: Simplify right side
    4,889.54x = 18,657,601.30
  5. Step 5: Solve for x
    x = 18,657,601.30/4,889.54
  6. Step 6: Final answer
    x = 3,815.82

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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.