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Finding the Fourth Proportional to 66,528.50, 99,771.99 and 22,144.88

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Solution

The fourth proportional to 66,528.50, 99,771.99 and 22,144.88 is: 33,210.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,528.50 : 99,771.99 = 22,144.88 : x
  2. Step 2: Convert to fraction form
    66,528.50/99,771.99 = 22,144.88/x
  3. Step 3: Cross multiply
    66,528.50x = 99,771.99 × 22,144.88
  4. Step 4: Simplify right side
    66,528.50x = 2,209,438,745.91
  5. Step 5: Solve for x
    x = 2,209,438,745.91/66,528.50
  6. Step 6: Final answer
    x = 33,210.41

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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.