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Finding the Fourth Proportional to 7,894.11, 11,783.37 and 6,959.96

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Solution

The fourth proportional to 7,894.11, 11,783.37 and 6,959.96 is: 10,388.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,894.11 : 11,783.37 = 6,959.96 : x
  2. Step 2: Convert to fraction form
    7,894.11/11,783.37 = 6,959.96/x
  3. Step 3: Cross multiply
    7,894.11x = 11,783.37 × 6,959.96
  4. Step 4: Simplify right side
    7,894.11x = 82,011,783.87
  5. Step 5: Solve for x
    x = 82,011,783.87/7,894.11
  6. Step 6: Final answer
    x = 10,388.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.