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Finding the Fourth Proportional to 8,662.44, 11,957.24 and 5,125.64

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Solution

The fourth proportional to 8,662.44, 11,957.24 and 5,125.64 is: 7,075.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,662.44 : 11,957.24 = 5,125.64 : x
  2. Step 2: Convert to fraction form
    8,662.44/11,957.24 = 5,125.64/x
  3. Step 3: Cross multiply
    8,662.44x = 11,957.24 × 5,125.64
  4. Step 4: Simplify right side
    8,662.44x = 61,288,499.09
  5. Step 5: Solve for x
    x = 61,288,499.09/8,662.44
  6. Step 6: Final answer
    x = 7,075.20

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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.