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Finding the Fourth Proportional to 21,896.11, 32,837.28 and 7,101.60

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Solution

The fourth proportional to 21,896.11, 32,837.28 and 7,101.60 is: 10,650.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,896.11 : 32,837.28 = 7,101.60 : x
  2. Step 2: Convert to fraction form
    21,896.11/32,837.28 = 7,101.60/x
  3. Step 3: Cross multiply
    21,896.11x = 32,837.28 × 7,101.60
  4. Step 4: Simplify right side
    21,896.11x = 233,197,227.65
  5. Step 5: Solve for x
    x = 233,197,227.65/21,896.11
  6. Step 6: Final answer
    x = 10,650.17

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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.