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Finding the Fourth Proportional to 64,968.73, 97,456.56 and 20,598.96

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Solution

The fourth proportional to 64,968.73, 97,456.56 and 20,598.96 is: 30,899.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,968.73 : 97,456.56 = 20,598.96 : x
  2. Step 2: Convert to fraction form
    64,968.73/97,456.56 = 20,598.96/x
  3. Step 3: Cross multiply
    64,968.73x = 97,456.56 × 20,598.96
  4. Step 4: Simplify right side
    64,968.73x = 2,007,503,781.18
  5. Step 5: Solve for x
    x = 2,007,503,781.18/64,968.73
  6. Step 6: Final answer
    x = 30,899.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.