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Finding the Fourth Proportional to 4,903.70, 7,357.35 and 1,982.30

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Solution

The fourth proportional to 4,903.70, 7,357.35 and 1,982.30 is: 2,974.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,903.70 : 7,357.35 = 1,982.30 : x
  2. Step 2: Convert to fraction form
    4,903.70/7,357.35 = 1,982.30/x
  3. Step 3: Cross multiply
    4,903.70x = 7,357.35 × 1,982.30
  4. Step 4: Simplify right side
    4,903.70x = 14,584,474.91
  5. Step 5: Solve for x
    x = 14,584,474.91/4,903.70
  6. Step 6: Final answer
    x = 2,974.18

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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.