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Finding the Fourth Proportional to 4,943.43, 7,415.15 and 2,169.45

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Solution

The fourth proportional to 4,943.43, 7,415.15 and 2,169.45 is: 3,254.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,943.43 : 7,415.15 = 2,169.45 : x
  2. Step 2: Convert to fraction form
    4,943.43/7,415.15 = 2,169.45/x
  3. Step 3: Cross multiply
    4,943.43x = 7,415.15 × 2,169.45
  4. Step 4: Simplify right side
    4,943.43x = 16,086,786.32
  5. Step 5: Solve for x
    x = 16,086,786.32/4,943.43
  6. Step 6: Final answer
    x = 3,254.18

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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.