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Finding the Fourth Proportional to 35,994.32, 53,991.96 and 12,621.44

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Solution

The fourth proportional to 35,994.32, 53,991.96 and 12,621.44 is: 18,932.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,994.32 : 53,991.96 = 12,621.44 : x
  2. Step 2: Convert to fraction form
    35,994.32/53,991.96 = 12,621.44/x
  3. Step 3: Cross multiply
    35,994.32x = 53,991.96 × 12,621.44
  4. Step 4: Simplify right side
    35,994.32x = 681,456,283.62
  5. Step 5: Solve for x
    x = 681,456,283.62/35,994.32
  6. Step 6: Final answer
    x = 18,932.33

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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.