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Finding the Fourth Proportional to 66,207.39, 91,366.64 and 35,992.98

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Solution

The fourth proportional to 66,207.39, 91,366.64 and 35,992.98 is: 49,670.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,207.39 : 91,366.64 = 35,992.98 : x
  2. Step 2: Convert to fraction form
    66,207.39/91,366.64 = 35,992.98/x
  3. Step 3: Cross multiply
    66,207.39x = 91,366.64 × 35,992.98
  4. Step 4: Simplify right side
    66,207.39x = 3,288,557,466.22
  5. Step 5: Solve for x
    x = 3,288,557,466.22/66,207.39
  6. Step 6: Final answer
    x = 49,670.55

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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.