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Finding the Fourth Proportional to 3,768.28, 5,652.75 and 994.91

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Solution

The fourth proportional to 3,768.28, 5,652.75 and 994.91 is: 1,492.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,768.28 : 5,652.75 = 994.91 : x
  2. Step 2: Convert to fraction form
    3,768.28/5,652.75 = 994.91/x
  3. Step 3: Cross multiply
    3,768.28x = 5,652.75 × 994.91
  4. Step 4: Simplify right side
    3,768.28x = 5,623,977.50
  5. Step 5: Solve for x
    x = 5,623,977.50/3,768.28
  6. Step 6: Final answer
    x = 1,492.45

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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.