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Finding the Fourth Proportional to 33,226.88, 45,858.16 and 20,655.68

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Solution

The fourth proportional to 33,226.88, 45,858.16 and 20,655.68 is: 28,507.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,226.88 : 45,858.16 = 20,655.68 : x
  2. Step 2: Convert to fraction form
    33,226.88/45,858.16 = 20,655.68/x
  3. Step 3: Cross multiply
    33,226.88x = 45,858.16 × 20,655.68
  4. Step 4: Simplify right side
    33,226.88x = 947,231,478.35
  5. Step 5: Solve for x
    x = 947,231,478.35/33,226.88
  6. Step 6: Final answer
    x = 28,507.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.