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Finding the Fourth Proportional to 66,925.44, 100,388.77 and 21,946.14

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Solution

The fourth proportional to 66,925.44, 100,388.77 and 21,946.14 is: 32,919.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,925.44 : 100,388.77 = 21,946.14 : x
  2. Step 2: Convert to fraction form
    66,925.44/100,388.77 = 21,946.14/x
  3. Step 3: Cross multiply
    66,925.44x = 100,388.77 × 21,946.14
  4. Step 4: Simplify right side
    66,925.44x = 2,203,145,945.98
  5. Step 5: Solve for x
    x = 2,203,145,945.98/66,925.44
  6. Step 6: Final answer
    x = 32,919.41

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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.