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Finding the Fourth Proportional to 9,958.80, 14,940.76 and 2,938.53

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Solution

The fourth proportional to 9,958.80, 14,940.76 and 2,938.53 is: 4,408.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,958.80 : 14,940.76 = 2,938.53 : x
  2. Step 2: Convert to fraction form
    9,958.80/14,940.76 = 2,938.53/x
  3. Step 3: Cross multiply
    9,958.80x = 14,940.76 × 2,938.53
  4. Step 4: Simplify right side
    9,958.80x = 43,903,880.67
  5. Step 5: Solve for x
    x = 43,903,880.67/9,958.80
  6. Step 6: Final answer
    x = 4,408.55

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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.