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Finding the Fourth Proportional to 45,993.20, 68,935.80 and 45,500.72

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Solution

The fourth proportional to 45,993.20, 68,935.80 and 45,500.72 is: 68,197.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,993.20 : 68,935.80 = 45,500.72 : x
  2. Step 2: Convert to fraction form
    45,993.20/68,935.80 = 45,500.72/x
  3. Step 3: Cross multiply
    45,993.20x = 68,935.80 × 45,500.72
  4. Step 4: Simplify right side
    45,993.20x = 3,136,628,533.78
  5. Step 5: Solve for x
    x = 3,136,628,533.78/45,993.20
  6. Step 6: Final answer
    x = 68,197.66

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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.