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Finding the Fourth Proportional to 7,956.62, 10,980.10 and 4,419.98

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Solution

The fourth proportional to 7,956.62, 10,980.10 and 4,419.98 is: 6,099.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,956.62 : 10,980.10 = 4,419.98 : x
  2. Step 2: Convert to fraction form
    7,956.62/10,980.10 = 4,419.98/x
  3. Step 3: Cross multiply
    7,956.62x = 10,980.10 × 4,419.98
  4. Step 4: Simplify right side
    7,956.62x = 48,531,822.40
  5. Step 5: Solve for x
    x = 48,531,822.40/7,956.62
  6. Step 6: Final answer
    x = 6,099.55

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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.