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Finding the Fourth Proportional to 2,984.52, 4,477 and 793.20

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Solution

The fourth proportional to 2,984.52, 4,477 and 793.20 is: 1,189.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,984.52 : 4,477 = 793.20 : x
  2. Step 2: Convert to fraction form
    2,984.52/4,477 = 793.20/x
  3. Step 3: Cross multiply
    2,984.52x = 4,477 × 793.20
  4. Step 4: Simplify right side
    2,984.52x = 3,551,156.40
  5. Step 5: Solve for x
    x = 3,551,156.40/2,984.52
  6. Step 6: Final answer
    x = 1,189.86

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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.