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Finding the Fourth Proportional to 3,365.94, 4,645.15 and 1,949.69

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Solution

The fourth proportional to 3,365.94, 4,645.15 and 1,949.69 is: 2,690.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,365.94 : 4,645.15 = 1,949.69 : x
  2. Step 2: Convert to fraction form
    3,365.94/4,645.15 = 1,949.69/x
  3. Step 3: Cross multiply
    3,365.94x = 4,645.15 × 1,949.69
  4. Step 4: Simplify right side
    3,365.94x = 9,056,602.50
  5. Step 5: Solve for x
    x = 9,056,602.50/3,365.94
  6. Step 6: Final answer
    x = 2,690.66

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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.