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Finding the Fourth Proportional to 22,201.75, 33,307.89 and 6,619.78

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Solution

The fourth proportional to 22,201.75, 33,307.89 and 6,619.78 is: 9,931.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,201.75 : 33,307.89 = 6,619.78 : x
  2. Step 2: Convert to fraction form
    22,201.75/33,307.89 = 6,619.78/x
  3. Step 3: Cross multiply
    22,201.75x = 33,307.89 × 6,619.78
  4. Step 4: Simplify right side
    22,201.75x = 220,490,904.06
  5. Step 5: Solve for x
    x = 220,490,904.06/22,201.75
  6. Step 6: Final answer
    x = 9,931.24

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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.