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Finding the Fourth Proportional to 16,993.60, 25,458 and 9,956.32

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Solution

The fourth proportional to 16,993.60, 25,458 and 9,956.32 is: 14,915.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,993.60 : 25,458 = 9,956.32 : x
  2. Step 2: Convert to fraction form
    16,993.60/25,458 = 9,956.32/x
  3. Step 3: Cross multiply
    16,993.60x = 25,458 × 9,956.32
  4. Step 4: Simplify right side
    16,993.60x = 253,467,994.56
  5. Step 5: Solve for x
    x = 253,467,994.56/16,993.60
  6. Step 6: Final answer
    x = 14,915.50

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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.