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Finding the Fourth Proportional to 7,956.63, 10,980.63 and 4,419.83

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Solution

The fourth proportional to 7,956.63, 10,980.63 and 4,419.83 is: 6,099.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,956.63 : 10,980.63 = 4,419.83 : x
  2. Step 2: Convert to fraction form
    7,956.63/10,980.63 = 4,419.83/x
  3. Step 3: Cross multiply
    7,956.63x = 10,980.63 × 4,419.83
  4. Step 4: Simplify right side
    7,956.63x = 48,532,545.34
  5. Step 5: Solve for x
    x = 48,532,545.34/7,956.63
  6. Step 6: Final answer
    x = 6,099.64

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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.