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Finding the Fourth Proportional to 8,997.32, 12,410.68 and 5,809.40

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Solution

The fourth proportional to 8,997.32, 12,410.68 and 5,809.40 is: 8,013.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,997.32 : 12,410.68 = 5,809.40 : x
  2. Step 2: Convert to fraction form
    8,997.32/12,410.68 = 5,809.40/x
  3. Step 3: Cross multiply
    8,997.32x = 12,410.68 × 5,809.40
  4. Step 4: Simplify right side
    8,997.32x = 72,098,604.39
  5. Step 5: Solve for x
    x = 72,098,604.39/8,997.32
  6. Step 6: Final answer
    x = 8,013.34

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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.