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Finding the Fourth Proportional to 57,610.84, 86,431.94 and 17,628.94

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Solution

The fourth proportional to 57,610.84, 86,431.94 and 17,628.94 is: 26,448.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,610.84 : 86,431.94 = 17,628.94 : x
  2. Step 2: Convert to fraction form
    57,610.84/86,431.94 = 17,628.94/x
  3. Step 3: Cross multiply
    57,610.84x = 86,431.94 × 17,628.94
  4. Step 4: Simplify right side
    57,610.84x = 1,523,703,484.34
  5. Step 5: Solve for x
    x = 1,523,703,484.34/57,610.84
  6. Step 6: Final answer
    x = 26,448.21

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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.