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Finding the Fourth Proportional to 38,531.70, 57,809.90 and 16,363.70

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Solution

The fourth proportional to 38,531.70, 57,809.90 and 16,363.70 is: 24,550.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,531.70 : 57,809.90 = 16,363.70 : x
  2. Step 2: Convert to fraction form
    38,531.70/57,809.90 = 16,363.70/x
  3. Step 3: Cross multiply
    38,531.70x = 57,809.90 × 16,363.70
  4. Step 4: Simplify right side
    38,531.70x = 945,983,860.63
  5. Step 5: Solve for x
    x = 945,983,860.63/38,531.70
  6. Step 6: Final answer
    x = 24,550.79

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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.