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Finding the Fourth Proportional to 10,908.56, 16,361.16 and 5,980.64

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Solution

The fourth proportional to 10,908.56, 16,361.16 and 5,980.64 is: 8,970.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,908.56 : 16,361.16 = 5,980.64 : x
  2. Step 2: Convert to fraction form
    10,908.56/16,361.16 = 5,980.64/x
  3. Step 3: Cross multiply
    10,908.56x = 16,361.16 × 5,980.64
  4. Step 4: Simplify right side
    10,908.56x = 97,850,207.94
  5. Step 5: Solve for x
    x = 97,850,207.94/10,908.56
  6. Step 6: Final answer
    x = 8,970.04

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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.