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Finding the Fourth Proportional to 58,649.78, 80,936.78 and 31,792.26

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Solution

The fourth proportional to 58,649.78, 80,936.78 and 31,792.26 is: 43,873.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,649.78 : 80,936.78 = 31,792.26 : x
  2. Step 2: Convert to fraction form
    58,649.78/80,936.78 = 31,792.26/x
  3. Step 3: Cross multiply
    58,649.78x = 80,936.78 × 31,792.26
  4. Step 4: Simplify right side
    58,649.78x = 2,573,162,994.36
  5. Step 5: Solve for x
    x = 2,573,162,994.36/58,649.78
  6. Step 6: Final answer
    x = 43,873.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.