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Finding the Fourth Proportional to 4,891.97, 7,338.88 and 1,605.26

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Solution

The fourth proportional to 4,891.97, 7,338.88 and 1,605.26 is: 2,408.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,891.97 : 7,338.88 = 1,605.26 : x
  2. Step 2: Convert to fraction form
    4,891.97/7,338.88 = 1,605.26/x
  3. Step 3: Cross multiply
    4,891.97x = 7,338.88 × 1,605.26
  4. Step 4: Simplify right side
    4,891.97x = 11,780,810.51
  5. Step 5: Solve for x
    x = 11,780,810.51/4,891.97
  6. Step 6: Final answer
    x = 2,408.19

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1.5x scale

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.