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Finding the Fourth Proportional to 61,643.64, 85,068.42 and 33,349.56

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Solution

The fourth proportional to 61,643.64, 85,068.42 and 33,349.56 is: 46,022.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,643.64 : 85,068.42 = 33,349.56 : x
  2. Step 2: Convert to fraction form
    61,643.64/85,068.42 = 33,349.56/x
  3. Step 3: Cross multiply
    61,643.64x = 85,068.42 × 33,349.56
  4. Step 4: Simplify right side
    61,643.64x = 2,836,994,376.90
  5. Step 5: Solve for x
    x = 2,836,994,376.90/61,643.64
  6. Step 6: Final answer
    x = 46,022.50

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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.