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Finding the Fourth Proportional to 33,614.40, 50,421.60 and 13,907.10

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Solution

The fourth proportional to 33,614.40, 50,421.60 and 13,907.10 is: 20,860.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,614.40 : 50,421.60 = 13,907.10 : x
  2. Step 2: Convert to fraction form
    33,614.40/50,421.60 = 13,907.10/x
  3. Step 3: Cross multiply
    33,614.40x = 50,421.60 × 13,907.10
  4. Step 4: Simplify right side
    33,614.40x = 701,218,233.36
  5. Step 5: Solve for x
    x = 701,218,233.36/33,614.40
  6. Step 6: Final answer
    x = 20,860.65

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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.