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Finding the Fourth Proportional to 15,026.02, 20,735.73 and 8,311.12

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Solution

The fourth proportional to 15,026.02, 20,735.73 and 8,311.12 is: 11,469.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,026.02 : 20,735.73 = 8,311.12 : x
  2. Step 2: Convert to fraction form
    15,026.02/20,735.73 = 8,311.12/x
  3. Step 3: Cross multiply
    15,026.02x = 20,735.73 × 8,311.12
  4. Step 4: Simplify right side
    15,026.02x = 172,337,140.32
  5. Step 5: Solve for x
    x = 172,337,140.32/15,026.02
  6. Step 6: Final answer
    x = 11,469.25

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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.