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Finding the Fourth Proportional to 6,991.96, 10,455.54 and 5,414.08

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Solution

The fourth proportional to 6,991.96, 10,455.54 and 5,414.08 is: 8,096.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,991.96 : 10,455.54 = 5,414.08 : x
  2. Step 2: Convert to fraction form
    6,991.96/10,455.54 = 5,414.08/x
  3. Step 3: Cross multiply
    6,991.96x = 10,455.54 × 5,414.08
  4. Step 4: Simplify right side
    6,991.96x = 56,607,130.00
  5. Step 5: Solve for x
    x = 56,607,130.00/6,991.96
  6. Step 6: Final answer
    x = 8,096.03

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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.