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Finding the Fourth Proportional to 7,640.52, 11,460.78 and 2,709.96

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Solution

The fourth proportional to 7,640.52, 11,460.78 and 2,709.96 is: 4,064.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,640.52 : 11,460.78 = 2,709.96 : x
  2. Step 2: Convert to fraction form
    7,640.52/11,460.78 = 2,709.96/x
  3. Step 3: Cross multiply
    7,640.52x = 11,460.78 × 2,709.96
  4. Step 4: Simplify right side
    7,640.52x = 31,058,255.37
  5. Step 5: Solve for x
    x = 31,058,255.37/7,640.52
  6. Step 6: Final answer
    x = 4,064.94

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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.