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Finding the Fourth Proportional to 66,109.15, 91,230.11 and 35,893.87

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Solution

The fourth proportional to 66,109.15, 91,230.11 and 35,893.87 is: 49,533.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,109.15 : 91,230.11 = 35,893.87 : x
  2. Step 2: Convert to fraction form
    66,109.15/91,230.11 = 35,893.87/x
  3. Step 3: Cross multiply
    66,109.15x = 91,230.11 × 35,893.87
  4. Step 4: Simplify right side
    66,109.15x = 3,274,601,435.48
  5. Step 5: Solve for x
    x = 3,274,601,435.48/66,109.15
  6. Step 6: Final answer
    x = 49,533.25

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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.