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Finding the Fourth Proportional to 66,394.06, 99,656.70 and 35,229.32

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Solution

The fourth proportional to 66,394.06, 99,656.70 and 35,229.32 is: 52,878.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,394.06 : 99,656.70 = 35,229.32 : x
  2. Step 2: Convert to fraction form
    66,394.06/99,656.70 = 35,229.32/x
  3. Step 3: Cross multiply
    66,394.06x = 99,656.70 × 35,229.32
  4. Step 4: Simplify right side
    66,394.06x = 3,510,837,774.44
  5. Step 5: Solve for x
    x = 3,510,837,774.44/66,394.06
  6. Step 6: Final answer
    x = 52,878.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.