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Finding the Fourth Proportional to 33,920.90, 50,905.65 and 19,114.10

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Solution

The fourth proportional to 33,920.90, 50,905.65 and 19,114.10 is: 28,684.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,920.90 : 50,905.65 = 19,114.10 : x
  2. Step 2: Convert to fraction form
    33,920.90/50,905.65 = 19,114.10/x
  3. Step 3: Cross multiply
    33,920.90x = 50,905.65 × 19,114.10
  4. Step 4: Simplify right side
    33,920.90x = 973,015,684.67
  5. Step 5: Solve for x
    x = 973,015,684.67/33,920.90
  6. Step 6: Final answer
    x = 28,684.84

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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.