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Finding the Fourth Proportional to 66,425.64, 99,632.70 and 22,050.60

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Solution

The fourth proportional to 66,425.64, 99,632.70 and 22,050.60 is: 33,073.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,425.64 : 99,632.70 = 22,050.60 : x
  2. Step 2: Convert to fraction form
    66,425.64/99,632.70 = 22,050.60/x
  3. Step 3: Cross multiply
    66,425.64x = 99,632.70 × 22,050.60
  4. Step 4: Simplify right side
    66,425.64x = 2,196,960,814.62
  5. Step 5: Solve for x
    x = 2,196,960,814.62/66,425.64
  6. Step 6: Final answer
    x = 33,073.99

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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.