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Finding the Fourth Proportional to 3,176.02, 4,764.56 and 984.31

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Solution

The fourth proportional to 3,176.02, 4,764.56 and 984.31 is: 1,476.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,176.02 : 4,764.56 = 984.31 : x
  2. Step 2: Convert to fraction form
    3,176.02/4,764.56 = 984.31/x
  3. Step 3: Cross multiply
    3,176.02x = 4,764.56 × 984.31
  4. Step 4: Simplify right side
    3,176.02x = 4,689,787.22
  5. Step 5: Solve for x
    x = 4,689,787.22/3,176.02
  6. Step 6: Final answer
    x = 1,476.63

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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.