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Finding the Fourth Proportional to 66,093.22, 91,208.72 and 35,878.52

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Solution

The fourth proportional to 66,093.22, 91,208.72 and 35,878.52 is: 49,512.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,093.22 : 91,208.72 = 35,878.52 : x
  2. Step 2: Convert to fraction form
    66,093.22/91,208.72 = 35,878.52/x
  3. Step 3: Cross multiply
    66,093.22x = 91,208.72 × 35,878.52
  4. Step 4: Simplify right side
    66,093.22x = 3,272,433,884.69
  5. Step 5: Solve for x
    x = 3,272,433,884.69/66,093.22
  6. Step 6: Final answer
    x = 49,512.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.