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Finding the Fourth Proportional to 29,169.80, 40,257.89 and 19,100.71

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Solution

The fourth proportional to 29,169.80, 40,257.89 and 19,100.71 is: 26,361.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,169.80 : 40,257.89 = 19,100.71 : x
  2. Step 2: Convert to fraction form
    29,169.80/40,257.89 = 19,100.71/x
  3. Step 3: Cross multiply
    29,169.80x = 40,257.89 × 19,100.71
  4. Step 4: Simplify right side
    29,169.80x = 768,954,254.83
  5. Step 5: Solve for x
    x = 768,954,254.83/29,169.80
  6. Step 6: Final answer
    x = 26,361.32

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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.