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Finding the Fourth Proportional to 32,004.80, 48,007.20 and 30,276.80

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Solution

The fourth proportional to 32,004.80, 48,007.20 and 30,276.80 is: 45,415.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,004.80 : 48,007.20 = 30,276.80 : x
  2. Step 2: Convert to fraction form
    32,004.80/48,007.20 = 30,276.80/x
  3. Step 3: Cross multiply
    32,004.80x = 48,007.20 × 30,276.80
  4. Step 4: Simplify right side
    32,004.80x = 1,453,504,392.96
  5. Step 5: Solve for x
    x = 1,453,504,392.96/32,004.80
  6. Step 6: Final answer
    x = 45,415.20

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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.