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Finding the Fourth Proportional to 7,914.48, 11,871.68 and 7,433.34

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Solution

The fourth proportional to 7,914.48, 11,871.68 and 7,433.34 is: 11,149.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,914.48 : 11,871.68 = 7,433.34 : x
  2. Step 2: Convert to fraction form
    7,914.48/11,871.68 = 7,433.34/x
  3. Step 3: Cross multiply
    7,914.48x = 11,871.68 × 7,433.34
  4. Step 4: Simplify right side
    7,914.48x = 88,246,233.81
  5. Step 5: Solve for x
    x = 88,246,233.81/7,914.48
  6. Step 6: Final answer
    x = 11,149.97

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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.