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Finding the Fourth Proportional to 21,797.88, 32,696.64 and 6,215.56

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Solution

The fourth proportional to 21,797.88, 32,696.64 and 6,215.56 is: 9,323.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,797.88 : 32,696.64 = 6,215.56 : x
  2. Step 2: Convert to fraction form
    21,797.88/32,696.64 = 6,215.56/x
  3. Step 3: Cross multiply
    21,797.88x = 32,696.64 × 6,215.56
  4. Step 4: Simplify right side
    21,797.88x = 203,227,927.72
  5. Step 5: Solve for x
    x = 203,227,927.72/21,797.88
  6. Step 6: Final answer
    x = 9,323.29

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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.