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Finding the Fourth Proportional to 45,965.80, 68,956.80 and 16,400.80

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Solution

The fourth proportional to 45,965.80, 68,956.80 and 16,400.80 is: 24,604.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,965.80 : 68,956.80 = 16,400.80 : x
  2. Step 2: Convert to fraction form
    45,965.80/68,956.80 = 16,400.80/x
  3. Step 3: Cross multiply
    45,965.80x = 68,956.80 × 16,400.80
  4. Step 4: Simplify right side
    45,965.80x = 1,130,946,685.44
  5. Step 5: Solve for x
    x = 1,130,946,685.44/45,965.80
  6. Step 6: Final answer
    x = 24,604.09

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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.