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Finding the Fourth Proportional to 7,803.97, 11,722.05 and 7,467.12

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Solution

The fourth proportional to 7,803.97, 11,722.05 and 7,467.12 is: 11,216.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,803.97 : 11,722.05 = 7,467.12 : x
  2. Step 2: Convert to fraction form
    7,803.97/11,722.05 = 7,467.12/x
  3. Step 3: Cross multiply
    7,803.97x = 11,722.05 × 7,467.12
  4. Step 4: Simplify right side
    7,803.97x = 87,529,954.00
  5. Step 5: Solve for x
    x = 87,529,954.00/7,803.97
  6. Step 6: Final answer
    x = 11,216.08

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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.