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Finding the Fourth Proportional to 66,447.67, 91,696.13 and 36,233.58

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Solution

The fourth proportional to 66,447.67, 91,696.13 and 36,233.58 is: 50,001.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,447.67 : 91,696.13 = 36,233.58 : x
  2. Step 2: Convert to fraction form
    66,447.67/91,696.13 = 36,233.58/x
  3. Step 3: Cross multiply
    66,447.67x = 91,696.13 × 36,233.58
  4. Step 4: Simplify right side
    66,447.67x = 3,322,478,742.92
  5. Step 5: Solve for x
    x = 3,322,478,742.92/66,447.67
  6. Step 6: Final answer
    x = 50,001.44

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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.