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Finding the Fourth Proportional to 54,907.20, 82,360.80 and 27,259.20

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Solution

The fourth proportional to 54,907.20, 82,360.80 and 27,259.20 is: 40,888.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,907.20 : 82,360.80 = 27,259.20 : x
  2. Step 2: Convert to fraction form
    54,907.20/82,360.80 = 27,259.20/x
  3. Step 3: Cross multiply
    54,907.20x = 82,360.80 × 27,259.20
  4. Step 4: Simplify right side
    54,907.20x = 2,245,089,519.36
  5. Step 5: Solve for x
    x = 2,245,089,519.36/54,907.20
  6. Step 6: Final answer
    x = 40,888.80

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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.