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Finding the Fourth Proportional to 3,043.86, 4,199.49 and 1,865.22

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Solution

The fourth proportional to 3,043.86, 4,199.49 and 1,865.22 is: 2,573.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,043.86 : 4,199.49 = 1,865.22 : x
  2. Step 2: Convert to fraction form
    3,043.86/4,199.49 = 1,865.22/x
  3. Step 3: Cross multiply
    3,043.86x = 4,199.49 × 1,865.22
  4. Step 4: Simplify right side
    3,043.86x = 7,832,972.74
  5. Step 5: Solve for x
    x = 7,832,972.74/3,043.86
  6. Step 6: Final answer
    x = 2,573.37

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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.