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Finding the Fourth Proportional to 67,040.44, 100,482.90 and 53,907.64

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Solution

The fourth proportional to 67,040.44, 100,482.90 and 53,907.64 is: 80,798.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,040.44 : 100,482.90 = 53,907.64 : x
  2. Step 2: Convert to fraction form
    67,040.44/100,482.90 = 53,907.64/x
  3. Step 3: Cross multiply
    67,040.44x = 100,482.90 × 53,907.64
  4. Step 4: Simplify right side
    67,040.44x = 5,416,795,999.36
  5. Step 5: Solve for x
    x = 5,416,795,999.36/67,040.44
  6. Step 6: Final answer
    x = 80,798.93

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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.