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Finding the Fourth Proportional to 8,887.64, 13,333.43 and 2,964.81

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Solution

The fourth proportional to 8,887.64, 13,333.43 and 2,964.81 is: 4,447.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,887.64 : 13,333.43 = 2,964.81 : x
  2. Step 2: Convert to fraction form
    8,887.64/13,333.43 = 2,964.81/x
  3. Step 3: Cross multiply
    8,887.64x = 13,333.43 × 2,964.81
  4. Step 4: Simplify right side
    8,887.64x = 39,531,144.01
  5. Step 5: Solve for x
    x = 39,531,144.01/8,887.64
  6. Step 6: Final answer
    x = 4,447.88

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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.