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Finding the Fourth Proportional to 38,893.84, 58,352.94 and 13,933.42

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Solution

The fourth proportional to 38,893.84, 58,352.94 and 13,933.42 is: 20,904.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,893.84 : 58,352.94 = 13,933.42 : x
  2. Step 2: Convert to fraction form
    38,893.84/58,352.94 = 13,933.42/x
  3. Step 3: Cross multiply
    38,893.84x = 58,352.94 × 13,933.42
  4. Step 4: Simplify right side
    38,893.84x = 813,056,021.25
  5. Step 5: Solve for x
    x = 813,056,021.25/38,893.84
  6. Step 6: Final answer
    x = 20,904.49

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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.