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Finding the Fourth Proportional to 45,754.56, 68,520.06 and 28,200.24

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Solution

The fourth proportional to 45,754.56, 68,520.06 and 28,200.24 is: 42,231.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,754.56 : 68,520.06 = 28,200.24 : x
  2. Step 2: Convert to fraction form
    45,754.56/68,520.06 = 28,200.24/x
  3. Step 3: Cross multiply
    45,754.56x = 68,520.06 × 28,200.24
  4. Step 4: Simplify right side
    45,754.56x = 1,932,282,136.81
  5. Step 5: Solve for x
    x = 1,932,282,136.81/45,754.56
  6. Step 6: Final answer
    x = 42,231.47

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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.