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Finding the Fourth Proportional to 66,093, 91,166.76 and 39,216.44

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Solution

The fourth proportional to 66,093, 91,166.76 and 39,216.44 is: 54,094.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,093 : 91,166.76 = 39,216.44 : x
  2. Step 2: Convert to fraction form
    66,093/91,166.76 = 39,216.44/x
  3. Step 3: Cross multiply
    66,093x = 91,166.76 × 39,216.44
  4. Step 4: Simplify right side
    66,093x = 3,575,235,773.53
  5. Step 5: Solve for x
    x = 3,575,235,773.53/66,093
  6. Step 6: Final answer
    x = 54,094.02

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1.5x scale

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.