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Finding the Fourth Proportional to 26,602.88, 39,879.68 and 16,712

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Solution

The fourth proportional to 26,602.88, 39,879.68 and 16,712 is: 25,052.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,602.88 : 39,879.68 = 16,712 : x
  2. Step 2: Convert to fraction form
    26,602.88/39,879.68 = 16,712/x
  3. Step 3: Cross multiply
    26,602.88x = 39,879.68 × 16,712
  4. Step 4: Simplify right side
    26,602.88x = 666,469,212.16
  5. Step 5: Solve for x
    x = 666,469,212.16/26,602.88
  6. Step 6: Final answer
    x = 25,052.52

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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.