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Finding the Fourth Proportional to 33,416.40, 50,124.60 and 20,974.80

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Solution

The fourth proportional to 33,416.40, 50,124.60 and 20,974.80 is: 31,462.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,416.40 : 50,124.60 = 20,974.80 : x
  2. Step 2: Convert to fraction form
    33,416.40/50,124.60 = 20,974.80/x
  3. Step 3: Cross multiply
    33,416.40x = 50,124.60 × 20,974.80
  4. Step 4: Simplify right side
    33,416.40x = 1,051,353,460.08
  5. Step 5: Solve for x
    x = 1,051,353,460.08/33,416.40
  6. Step 6: Final answer
    x = 31,462.20

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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.