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Finding the Fourth Proportional to 65,368.64, 90,201.26 and 36,682.35

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Solution

The fourth proportional to 65,368.64, 90,201.26 and 36,682.35 is: 50,617.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,368.64 : 90,201.26 = 36,682.35 : x
  2. Step 2: Convert to fraction form
    65,368.64/90,201.26 = 36,682.35/x
  3. Step 3: Cross multiply
    65,368.64x = 90,201.26 × 36,682.35
  4. Step 4: Simplify right side
    65,368.64x = 3,308,794,006.35
  5. Step 5: Solve for x
    x = 3,308,794,006.35/65,368.64
  6. Step 6: Final answer
    x = 50,617.46

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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.