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Finding the Fourth Proportional to 66,519.63, 91,795.32 and 36,305.33

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Solution

The fourth proportional to 66,519.63, 91,795.32 and 36,305.33 is: 50,100.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,519.63 : 91,795.32 = 36,305.33 : x
  2. Step 2: Convert to fraction form
    66,519.63/91,795.32 = 36,305.33/x
  3. Step 3: Cross multiply
    66,519.63x = 91,795.32 × 36,305.33
  4. Step 4: Simplify right side
    66,519.63x = 3,332,658,926.08
  5. Step 5: Solve for x
    x = 3,332,658,926.08/66,519.63
  6. Step 6: Final answer
    x = 50,100.38

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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.