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Finding the Fourth Proportional to 4,788.97, 7,182.06 and 1,866.58

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Solution

The fourth proportional to 4,788.97, 7,182.06 and 1,866.58 is: 2,799.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,788.97 : 7,182.06 = 1,866.58 : x
  2. Step 2: Convert to fraction form
    4,788.97/7,182.06 = 1,866.58/x
  3. Step 3: Cross multiply
    4,788.97x = 7,182.06 × 1,866.58
  4. Step 4: Simplify right side
    4,788.97x = 13,405,889.55
  5. Step 5: Solve for x
    x = 13,405,889.55/4,788.97
  6. Step 6: Final answer
    x = 2,799.33

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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.