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Finding the Fourth Proportional to 21,773.56, 32,660.34 and 5,357.56

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Solution

The fourth proportional to 21,773.56, 32,660.34 and 5,357.56 is: 8,036.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,773.56 : 32,660.34 = 5,357.56 : x
  2. Step 2: Convert to fraction form
    21,773.56/32,660.34 = 5,357.56/x
  3. Step 3: Cross multiply
    21,773.56x = 32,660.34 × 5,357.56
  4. Step 4: Simplify right side
    21,773.56x = 174,979,731.17
  5. Step 5: Solve for x
    x = 174,979,731.17/21,773.56
  6. Step 6: Final answer
    x = 8,036.34

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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.