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Finding the Fourth Proportional to 7,937.79, 10,951.97 and 4,749.79

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Solution

The fourth proportional to 7,937.79, 10,951.97 and 4,749.79 is: 6,553.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,937.79 : 10,951.97 = 4,749.79 : x
  2. Step 2: Convert to fraction form
    7,937.79/10,951.97 = 4,749.79/x
  3. Step 3: Cross multiply
    7,937.79x = 10,951.97 × 4,749.79
  4. Step 4: Simplify right side
    7,937.79x = 52,019,557.59
  5. Step 5: Solve for x
    x = 52,019,557.59/7,937.79
  6. Step 6: Final answer
    x = 6,553.41

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1.5x scale

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.