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Finding the Fourth Proportional to 66,301.96, 91,495.44 and 36,087.87

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Solution

The fourth proportional to 66,301.96, 91,495.44 and 36,087.87 is: 49,800.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,301.96 : 91,495.44 = 36,087.87 : x
  2. Step 2: Convert to fraction form
    66,301.96/91,495.44 = 36,087.87/x
  3. Step 3: Cross multiply
    66,301.96x = 91,495.44 × 36,087.87
  4. Step 4: Simplify right side
    66,301.96x = 3,301,875,544.31
  5. Step 5: Solve for x
    x = 3,301,875,544.31/66,301.96
  6. Step 6: Final answer
    x = 49,800.57

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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.