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Finding the Fourth Proportional to 9,960.84, 14,937.78 and 2,938.99

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Solution

The fourth proportional to 9,960.84, 14,937.78 and 2,938.99 is: 4,407.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,960.84 : 14,937.78 = 2,938.99 : x
  2. Step 2: Convert to fraction form
    9,960.84/14,937.78 = 2,938.99/x
  3. Step 3: Cross multiply
    9,960.84x = 14,937.78 × 2,938.99
  4. Step 4: Simplify right side
    9,960.84x = 43,902,008.54
  5. Step 5: Solve for x
    x = 43,902,008.54/9,960.84
  6. Step 6: Final answer
    x = 4,407.46

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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.