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Finding the Fourth Proportional to 45,392.80, 68,025.20 and 36,048.80

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Solution

The fourth proportional to 45,392.80, 68,025.20 and 36,048.80 is: 54,022.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,392.80 : 68,025.20 = 36,048.80 : x
  2. Step 2: Convert to fraction form
    45,392.80/68,025.20 = 36,048.80/x
  3. Step 3: Cross multiply
    45,392.80x = 68,025.20 × 36,048.80
  4. Step 4: Simplify right side
    45,392.80x = 2,452,226,829.76
  5. Step 5: Solve for x
    x = 2,452,226,829.76/45,392.80
  6. Step 6: Final answer
    x = 54,022.37

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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.