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Finding the Fourth Proportional to 57,647.67, 86,474.16 and 17,663.79

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Solution

The fourth proportional to 57,647.67, 86,474.16 and 17,663.79 is: 26,496.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,647.67 : 86,474.16 = 17,663.79 : x
  2. Step 2: Convert to fraction form
    57,647.67/86,474.16 = 17,663.79/x
  3. Step 3: Cross multiply
    57,647.67x = 86,474.16 × 17,663.79
  4. Step 4: Simplify right side
    57,647.67x = 1,527,461,402.67
  5. Step 5: Solve for x
    x = 1,527,461,402.67/57,647.67
  6. Step 6: Final answer
    x = 26,496.50

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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.