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Finding the Fourth Proportional to 64,997.64, 89,696.61 and 36,703.35

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Solution

The fourth proportional to 64,997.64, 89,696.61 and 36,703.35 is: 50,650.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,997.64 : 89,696.61 = 36,703.35 : x
  2. Step 2: Convert to fraction form
    64,997.64/89,696.61 = 36,703.35/x
  3. Step 3: Cross multiply
    64,997.64x = 89,696.61 × 36,703.35
  4. Step 4: Simplify right side
    64,997.64x = 3,292,166,070.64
  5. Step 5: Solve for x
    x = 3,292,166,070.64/64,997.64
  6. Step 6: Final answer
    x = 50,650.55

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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.