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Finding the Fourth Proportional to 65,893.75, 90,933.24 and 35,679.06

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Solution

The fourth proportional to 65,893.75, 90,933.24 and 35,679.06 is: 49,237.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,893.75 : 90,933.24 = 35,679.06 : x
  2. Step 2: Convert to fraction form
    65,893.75/90,933.24 = 35,679.06/x
  3. Step 3: Cross multiply
    65,893.75x = 90,933.24 × 35,679.06
  4. Step 4: Simplify right side
    65,893.75x = 3,244,412,753.29
  5. Step 5: Solve for x
    x = 3,244,412,753.29/65,893.75
  6. Step 6: Final answer
    x = 49,237.03

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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.