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Finding the Fourth Proportional to 66,566.55, 91,858.41 and 36,346.05

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Solution

The fourth proportional to 66,566.55, 91,858.41 and 36,346.05 is: 50,155.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,566.55 : 91,858.41 = 36,346.05 : x
  2. Step 2: Convert to fraction form
    66,566.55/91,858.41 = 36,346.05/x
  3. Step 3: Cross multiply
    66,566.55x = 91,858.41 × 36,346.05
  4. Step 4: Simplify right side
    66,566.55x = 3,338,690,362.78
  5. Step 5: Solve for x
    x = 3,338,690,362.78/66,566.55
  6. Step 6: Final answer
    x = 50,155.68

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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.