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Finding the Fourth Proportional to 66,584.02, 99,876.42 and 22,210.66

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Solution

The fourth proportional to 66,584.02, 99,876.42 and 22,210.66 is: 33,316.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,584.02 : 99,876.42 = 22,210.66 : x
  2. Step 2: Convert to fraction form
    66,584.02/99,876.42 = 22,210.66/x
  3. Step 3: Cross multiply
    66,584.02x = 99,876.42 × 22,210.66
  4. Step 4: Simplify right side
    66,584.02x = 2,218,321,206.64
  5. Step 5: Solve for x
    x = 2,218,321,206.64/66,584.02
  6. Step 6: Final answer
    x = 33,316.12

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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.