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Finding the Fourth Proportional to 77,992.77, 116,998.89 and 25,388.13

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Solution

The fourth proportional to 77,992.77, 116,998.89 and 25,388.13 is: 38,085.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,992.77 : 116,998.89 = 25,388.13 : x
  2. Step 2: Convert to fraction form
    77,992.77/116,998.89 = 25,388.13/x
  3. Step 3: Cross multiply
    77,992.77x = 116,998.89 × 25,388.13
  4. Step 4: Simplify right side
    77,992.77x = 2,970,383,029.18
  5. Step 5: Solve for x
    x = 2,970,383,029.18/77,992.77
  6. Step 6: Final answer
    x = 38,085.36

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1.5x scale

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.