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Finding the Fourth Proportional to 8,927.64, 13,387.20 and 3,997.32

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Solution

The fourth proportional to 8,927.64, 13,387.20 and 3,997.32 is: 5,994.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,927.64 : 13,387.20 = 3,997.32 : x
  2. Step 2: Convert to fraction form
    8,927.64/13,387.20 = 3,997.32/x
  3. Step 3: Cross multiply
    8,927.64x = 13,387.20 × 3,997.32
  4. Step 4: Simplify right side
    8,927.64x = 53,512,922.30
  5. Step 5: Solve for x
    x = 53,512,922.30/8,927.64
  6. Step 6: Final answer
    x = 5,994.07

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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.