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Finding the Fourth Proportional to 5,555.98, 7,664.37 and 3,763.51

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Solution

The fourth proportional to 5,555.98, 7,664.37 and 3,763.51 is: 5,191.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,555.98 : 7,664.37 = 3,763.51 : x
  2. Step 2: Convert to fraction form
    5,555.98/7,664.37 = 3,763.51/x
  3. Step 3: Cross multiply
    5,555.98x = 7,664.37 × 3,763.51
  4. Step 4: Simplify right side
    5,555.98x = 28,844,933.14
  5. Step 5: Solve for x
    x = 28,844,933.14/5,555.98
  6. Step 6: Final answer
    x = 5,191.69

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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.