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Finding the Fourth Proportional to 8,652.29, 11,940.41 and 5,114.21

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Solution

The fourth proportional to 8,652.29, 11,940.41 and 5,114.21 is: 7,057.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,652.29 : 11,940.41 = 5,114.21 : x
  2. Step 2: Convert to fraction form
    8,652.29/11,940.41 = 5,114.21/x
  3. Step 3: Cross multiply
    8,652.29x = 11,940.41 × 5,114.21
  4. Step 4: Simplify right side
    8,652.29x = 61,065,717.31
  5. Step 5: Solve for x
    x = 61,065,717.31/8,652.29
  6. Step 6: Final answer
    x = 7,057.76

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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.