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Finding the Fourth Proportional to 9,938.92, 14,908.40 and 3,013.44

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Solution

The fourth proportional to 9,938.92, 14,908.40 and 3,013.44 is: 4,520.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,938.92 : 14,908.40 = 3,013.44 : x
  2. Step 2: Convert to fraction form
    9,938.92/14,908.40 = 3,013.44/x
  3. Step 3: Cross multiply
    9,938.92x = 14,908.40 × 3,013.44
  4. Step 4: Simplify right side
    9,938.92x = 44,925,568.90
  5. Step 5: Solve for x
    x = 44,925,568.90/9,938.92
  6. Step 6: Final answer
    x = 4,520.17

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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.