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Finding the Fourth Proportional to 64,490.82, 88,997.64 and 35,811.48

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Solution

The fourth proportional to 64,490.82, 88,997.64 and 35,811.48 is: 49,420.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,490.82 : 88,997.64 = 35,811.48 : x
  2. Step 2: Convert to fraction form
    64,490.82/88,997.64 = 35,811.48/x
  3. Step 3: Cross multiply
    64,490.82x = 88,997.64 × 35,811.48
  4. Step 4: Simplify right side
    64,490.82x = 3,187,137,204.91
  5. Step 5: Solve for x
    x = 3,187,137,204.91/64,490.82
  6. Step 6: Final answer
    x = 49,420.01

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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.