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Finding the Fourth Proportional to 66,173.32, 91,318.80 and 35,958.52

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Solution

The fourth proportional to 66,173.32, 91,318.80 and 35,958.52 is: 49,622.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,173.32 : 91,318.80 = 35,958.52 : x
  2. Step 2: Convert to fraction form
    66,173.32/91,318.80 = 35,958.52/x
  3. Step 3: Cross multiply
    66,173.32x = 91,318.80 × 35,958.52
  4. Step 4: Simplify right side
    66,173.32x = 3,283,688,896.18
  5. Step 5: Solve for x
    x = 3,283,688,896.18/66,173.32
  6. Step 6: Final answer
    x = 49,622.55

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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.