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Finding the Fourth Proportional to 23,991.90, 35,987.85 and 12,883.31

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Solution

The fourth proportional to 23,991.90, 35,987.85 and 12,883.31 is: 19,324.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,991.90 : 35,987.85 = 12,883.31 : x
  2. Step 2: Convert to fraction form
    23,991.90/35,987.85 = 12,883.31/x
  3. Step 3: Cross multiply
    23,991.90x = 35,987.85 × 12,883.31
  4. Step 4: Simplify right side
    23,991.90x = 463,642,657.92
  5. Step 5: Solve for x
    x = 463,642,657.92/23,991.90
  6. Step 6: Final answer
    x = 19,324.96

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Similar ratio
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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.