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Finding the Fourth Proportional to 7,957.96, 10,983.30 and 6,629.56

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Solution

The fourth proportional to 7,957.96, 10,983.30 and 6,629.56 is: 9,149.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,957.96 : 10,983.30 = 6,629.56 : x
  2. Step 2: Convert to fraction form
    7,957.96/10,983.30 = 6,629.56/x
  3. Step 3: Cross multiply
    7,957.96x = 10,983.30 × 6,629.56
  4. Step 4: Simplify right side
    7,957.96x = 72,814,446.35
  5. Step 5: Solve for x
    x = 72,814,446.35/7,957.96
  6. Step 6: Final answer
    x = 9,149.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.