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Finding the Fourth Proportional to 64,297.70, 88,734.01 and 38,803.66

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Solution

The fourth proportional to 64,297.70, 88,734.01 and 38,803.66 is: 53,550.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,297.70 : 88,734.01 = 38,803.66 : x
  2. Step 2: Convert to fraction form
    64,297.70/88,734.01 = 38,803.66/x
  3. Step 3: Cross multiply
    64,297.70x = 88,734.01 × 38,803.66
  4. Step 4: Simplify right side
    64,297.70x = 3,443,203,999.25
  5. Step 5: Solve for x
    x = 3,443,203,999.25/64,297.70
  6. Step 6: Final answer
    x = 53,550.97

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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.