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Finding the Fourth Proportional to 66,464.80, 99,697.20 and 48,968.80

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Solution

The fourth proportional to 66,464.80, 99,697.20 and 48,968.80 is: 73,453.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,464.80 : 99,697.20 = 48,968.80 : x
  2. Step 2: Convert to fraction form
    66,464.80/99,697.20 = 48,968.80/x
  3. Step 3: Cross multiply
    66,464.80x = 99,697.20 × 48,968.80
  4. Step 4: Simplify right side
    66,464.80x = 4,882,052,247.36
  5. Step 5: Solve for x
    x = 4,882,052,247.36/66,464.80
  6. Step 6: Final answer
    x = 73,453.20

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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.