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Finding the Fourth Proportional to 4,996.40, 7,483.80 and 4,449.20

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Solution

The fourth proportional to 4,996.40, 7,483.80 and 4,449.20 is: 6,664.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,996.40 : 7,483.80 = 4,449.20 : x
  2. Step 2: Convert to fraction form
    4,996.40/7,483.80 = 4,449.20/x
  3. Step 3: Cross multiply
    4,996.40x = 7,483.80 × 4,449.20
  4. Step 4: Simplify right side
    4,996.40x = 33,296,922.96
  5. Step 5: Solve for x
    x = 33,296,922.96/4,996.40
  6. Step 6: Final answer
    x = 6,664.18

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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.