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Finding the Fourth Proportional to 66,641.94, 99,968.08 and 22,268.86

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Solution

The fourth proportional to 66,641.94, 99,968.08 and 22,268.86 is: 33,405.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,641.94 : 99,968.08 = 22,268.86 : x
  2. Step 2: Convert to fraction form
    66,641.94/99,968.08 = 22,268.86/x
  3. Step 3: Cross multiply
    66,641.94x = 99,968.08 × 22,268.86
  4. Step 4: Simplify right side
    66,641.94x = 2,226,175,177.99
  5. Step 5: Solve for x
    x = 2,226,175,177.99/66,641.94
  6. Step 6: Final answer
    x = 33,405.02

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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.