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Finding the Fourth Proportional to 10,396.62, 14,356.44 and 7,579.98

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Solution

The fourth proportional to 10,396.62, 14,356.44 and 7,579.98 is: 10,467.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,396.62 : 14,356.44 = 7,579.98 : x
  2. Step 2: Convert to fraction form
    10,396.62/14,356.44 = 7,579.98/x
  3. Step 3: Cross multiply
    10,396.62x = 14,356.44 × 7,579.98
  4. Step 4: Simplify right side
    10,396.62x = 108,821,528.07
  5. Step 5: Solve for x
    x = 108,821,528.07/10,396.62
  6. Step 6: Final answer
    x = 10,467.01

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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.