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Finding the Fourth Proportional to 58,728.56, 81,025.78 and 33,231.40

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Solution

The fourth proportional to 58,728.56, 81,025.78 and 33,231.40 is: 45,848.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,728.56 : 81,025.78 = 33,231.40 : x
  2. Step 2: Convert to fraction form
    58,728.56/81,025.78 = 33,231.40/x
  3. Step 3: Cross multiply
    58,728.56x = 81,025.78 × 33,231.40
  4. Step 4: Simplify right side
    58,728.56x = 2,692,600,105.49
  5. Step 5: Solve for x
    x = 2,692,600,105.49/58,728.56
  6. Step 6: Final answer
    x = 45,848.22

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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.