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Finding the Fourth Proportional to 11,622.96, 17,412.48 and 8,994.96

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Solution

The fourth proportional to 11,622.96, 17,412.48 and 8,994.96 is: 13,475.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,622.96 : 17,412.48 = 8,994.96 : x
  2. Step 2: Convert to fraction form
    11,622.96/17,412.48 = 8,994.96/x
  3. Step 3: Cross multiply
    11,622.96x = 17,412.48 × 8,994.96
  4. Step 4: Simplify right side
    11,622.96x = 156,624,561.10
  5. Step 5: Solve for x
    x = 156,624,561.10/11,622.96
  6. Step 6: Final answer
    x = 13,475.45

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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.