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Finding the Fourth Proportional to 10,893.64, 15,026.05 and 8,651.96

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Solution

The fourth proportional to 10,893.64, 15,026.05 and 8,651.96 is: 11,934.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,893.64 : 15,026.05 = 8,651.96 : x
  2. Step 2: Convert to fraction form
    10,893.64/15,026.05 = 8,651.96/x
  3. Step 3: Cross multiply
    10,893.64x = 15,026.05 × 8,651.96
  4. Step 4: Simplify right side
    10,893.64x = 130,004,783.56
  5. Step 5: Solve for x
    x = 130,004,783.56/10,893.64
  6. Step 6: Final answer
    x = 11,934.01

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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.