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Finding the Fourth Proportional to 7,267.40, 10,945.98 and 6,917.48

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Solution

The fourth proportional to 7,267.40, 10,945.98 and 6,917.48 is: 10,418.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,267.40 : 10,945.98 = 6,917.48 : x
  2. Step 2: Convert to fraction form
    7,267.40/10,945.98 = 6,917.48/x
  3. Step 3: Cross multiply
    7,267.40x = 10,945.98 × 6,917.48
  4. Step 4: Simplify right side
    7,267.40x = 75,718,597.73
  5. Step 5: Solve for x
    x = 75,718,597.73/7,267.40
  6. Step 6: Final answer
    x = 10,418.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.