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Finding the Fourth Proportional to 7,956.48, 10,980.10 and 4,420.02

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Solution

The fourth proportional to 7,956.48, 10,980.10 and 4,420.02 is: 6,099.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,956.48 : 10,980.10 = 4,420.02 : x
  2. Step 2: Convert to fraction form
    7,956.48/10,980.10 = 4,420.02/x
  3. Step 3: Cross multiply
    7,956.48x = 10,980.10 × 4,420.02
  4. Step 4: Simplify right side
    7,956.48x = 48,532,261.60
  5. Step 5: Solve for x
    x = 48,532,261.60/7,956.48
  6. Step 6: Final answer
    x = 6,099.72

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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.