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Finding the Fourth Proportional to 57,381.92, 86,072.40 and 33,991.52

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Solution

The fourth proportional to 57,381.92, 86,072.40 and 33,991.52 is: 50,987.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,381.92 : 86,072.40 = 33,991.52 : x
  2. Step 2: Convert to fraction form
    57,381.92/86,072.40 = 33,991.52/x
  3. Step 3: Cross multiply
    57,381.92x = 86,072.40 × 33,991.52
  4. Step 4: Simplify right side
    57,381.92x = 2,925,731,706.05
  5. Step 5: Solve for x
    x = 2,925,731,706.05/57,381.92
  6. Step 6: Final answer
    x = 50,987.00

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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.