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Finding the Fourth Proportional to 66,364.25, 91,582.67 and 36,556.25

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Solution

The fourth proportional to 66,364.25, 91,582.67 and 36,556.25 is: 50,447.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,364.25 : 91,582.67 = 36,556.25 : x
  2. Step 2: Convert to fraction form
    66,364.25/91,582.67 = 36,556.25/x
  3. Step 3: Cross multiply
    66,364.25x = 91,582.67 × 36,556.25
  4. Step 4: Simplify right side
    66,364.25x = 3,347,918,980.19
  5. Step 5: Solve for x
    x = 3,347,918,980.19/66,364.25
  6. Step 6: Final answer
    x = 50,447.63

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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.