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Finding the Fourth Proportional to 64,946.80, 89,615.46 and 36,651.88

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Solution

The fourth proportional to 64,946.80, 89,615.46 and 36,651.88 is: 50,573.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,946.80 : 89,615.46 = 36,651.88 : x
  2. Step 2: Convert to fraction form
    64,946.80/89,615.46 = 36,651.88/x
  3. Step 3: Cross multiply
    64,946.80x = 89,615.46 × 36,651.88
  4. Step 4: Simplify right side
    64,946.80x = 3,284,575,086.06
  5. Step 5: Solve for x
    x = 3,284,575,086.06/64,946.80
  6. Step 6: Final answer
    x = 50,573.32

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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.