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Finding the Fourth Proportional to 21,776.26, 32,660.54 and 9,927.38

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Solution

The fourth proportional to 21,776.26, 32,660.54 and 9,927.38 is: 14,889.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,776.26 : 32,660.54 = 9,927.38 : x
  2. Step 2: Convert to fraction form
    21,776.26/32,660.54 = 9,927.38/x
  3. Step 3: Cross multiply
    21,776.26x = 32,660.54 × 9,927.38
  4. Step 4: Simplify right side
    21,776.26x = 324,233,591.59
  5. Step 5: Solve for x
    x = 324,233,591.59/21,776.26
  6. Step 6: Final answer
    x = 14,889.31

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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.