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Finding the Fourth Proportional to 32,893.54, 45,382.72 and 20,133.42

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Solution

The fourth proportional to 32,893.54, 45,382.72 and 20,133.42 is: 27,777.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,893.54 : 45,382.72 = 20,133.42 : x
  2. Step 2: Convert to fraction form
    32,893.54/45,382.72 = 20,133.42/x
  3. Step 3: Cross multiply
    32,893.54x = 45,382.72 × 20,133.42
  4. Step 4: Simplify right side
    32,893.54x = 913,709,362.50
  5. Step 5: Solve for x
    x = 913,709,362.50/32,893.54
  6. Step 6: Final answer
    x = 27,777.78

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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.