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Finding the Fourth Proportional to 3,184.02, 4,774.50 and 992.16

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Solution

The fourth proportional to 3,184.02, 4,774.50 and 992.16 is: 1,487.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,184.02 : 4,774.50 = 992.16 : x
  2. Step 2: Convert to fraction form
    3,184.02/4,774.50 = 992.16/x
  3. Step 3: Cross multiply
    3,184.02x = 4,774.50 × 992.16
  4. Step 4: Simplify right side
    3,184.02x = 4,737,067.92
  5. Step 5: Solve for x
    x = 4,737,067.92/3,184.02
  6. Step 6: Final answer
    x = 1,487.76

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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.