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Finding the Fourth Proportional to 54,672.80, 75,449.60 and 33,162.40

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Solution

The fourth proportional to 54,672.80, 75,449.60 and 33,162.40 is: 45,764.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,672.80 : 75,449.60 = 33,162.40 : x
  2. Step 2: Convert to fraction form
    54,672.80/75,449.60 = 33,162.40/x
  3. Step 3: Cross multiply
    54,672.80x = 75,449.60 × 33,162.40
  4. Step 4: Simplify right side
    54,672.80x = 2,502,089,815.04
  5. Step 5: Solve for x
    x = 2,502,089,815.04/54,672.80
  6. Step 6: Final answer
    x = 45,764.80

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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.