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Finding the Fourth Proportional to 13,951.68, 20,902.62 and 7,363.14

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Solution

The fourth proportional to 13,951.68, 20,902.62 and 7,363.14 is: 11,031.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,951.68 : 20,902.62 = 7,363.14 : x
  2. Step 2: Convert to fraction form
    13,951.68/20,902.62 = 7,363.14/x
  3. Step 3: Cross multiply
    13,951.68x = 20,902.62 × 7,363.14
  4. Step 4: Simplify right side
    13,951.68x = 153,908,917.43
  5. Step 5: Solve for x
    x = 153,908,917.43/13,951.68
  6. Step 6: Final answer
    x = 11,031.57

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1.5x scale

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.