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Finding the Fourth Proportional to 5,664.40, 8,496.60 and 2,199.40

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Solution

The fourth proportional to 5,664.40, 8,496.60 and 2,199.40 is: 3,299.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,664.40 : 8,496.60 = 2,199.40 : x
  2. Step 2: Convert to fraction form
    5,664.40/8,496.60 = 2,199.40/x
  3. Step 3: Cross multiply
    5,664.40x = 8,496.60 × 2,199.40
  4. Step 4: Simplify right side
    5,664.40x = 18,687,422.04
  5. Step 5: Solve for x
    x = 18,687,422.04/5,664.40
  6. Step 6: Final answer
    x = 3,299.10

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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.