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Finding the Fourth Proportional to 64,503.82, 88,972.86 and 40,610.44

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Solution

The fourth proportional to 64,503.82, 88,972.86 and 40,610.44 is: 56,015.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,503.82 : 88,972.86 = 40,610.44 : x
  2. Step 2: Convert to fraction form
    64,503.82/88,972.86 = 40,610.44/x
  3. Step 3: Cross multiply
    64,503.82x = 88,972.86 × 40,610.44
  4. Step 4: Simplify right side
    64,503.82x = 3,613,226,992.66
  5. Step 5: Solve for x
    x = 3,613,226,992.66/64,503.82
  6. Step 6: Final answer
    x = 56,015.71

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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.