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Finding the Fourth Proportional to 65,129.94, 89,880.84 and 36,835.02

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Solution

The fourth proportional to 65,129.94, 89,880.84 and 36,835.02 is: 50,833.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,129.94 : 89,880.84 = 36,835.02 : x
  2. Step 2: Convert to fraction form
    65,129.94/89,880.84 = 36,835.02/x
  3. Step 3: Cross multiply
    65,129.94x = 89,880.84 × 36,835.02
  4. Step 4: Simplify right side
    65,129.94x = 3,310,762,539.02
  5. Step 5: Solve for x
    x = 3,310,762,539.02/65,129.94
  6. Step 6: Final answer
    x = 50,833.19

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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.