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Finding the Fourth Proportional to 66,437.43, 91,682.42 and 36,223.01

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Solution

The fourth proportional to 66,437.43, 91,682.42 and 36,223.01 is: 49,987.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,437.43 : 91,682.42 = 36,223.01 : x
  2. Step 2: Convert to fraction form
    66,437.43/91,682.42 = 36,223.01/x
  3. Step 3: Cross multiply
    66,437.43x = 91,682.42 × 36,223.01
  4. Step 4: Simplify right side
    66,437.43x = 3,321,013,035.37
  5. Step 5: Solve for x
    x = 3,321,013,035.37/66,437.43
  6. Step 6: Final answer
    x = 49,987.08

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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.