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Finding the Fourth Proportional to 66,110.29, 91,231.65 and 35,894.99

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Solution

The fourth proportional to 66,110.29, 91,231.65 and 35,894.99 is: 49,534.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,110.29 : 91,231.65 = 35,894.99 : x
  2. Step 2: Convert to fraction form
    66,110.29/91,231.65 = 35,894.99/x
  3. Step 3: Cross multiply
    66,110.29x = 91,231.65 × 35,894.99
  4. Step 4: Simplify right side
    66,110.29x = 3,274,759,392.51
  5. Step 5: Solve for x
    x = 3,274,759,392.51/66,110.29
  6. Step 6: Final answer
    x = 49,534.79

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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.