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Finding the Fourth Proportional to 32,991.64, 45,544.20 and 18,841.78

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Solution

The fourth proportional to 32,991.64, 45,544.20 and 18,841.78 is: 26,010.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,991.64 : 45,544.20 = 18,841.78 : x
  2. Step 2: Convert to fraction form
    32,991.64/45,544.20 = 18,841.78/x
  3. Step 3: Cross multiply
    32,991.64x = 45,544.20 × 18,841.78
  4. Step 4: Simplify right side
    32,991.64x = 858,133,796.68
  5. Step 5: Solve for x
    x = 858,133,796.68/32,991.64
  6. Step 6: Final answer
    x = 26,010.64

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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.