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Finding the Fourth Proportional to 57,294.22, 85,945.48 and 23,980.78

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Solution

The fourth proportional to 57,294.22, 85,945.48 and 23,980.78 is: 35,972.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,294.22 : 85,945.48 = 23,980.78 : x
  2. Step 2: Convert to fraction form
    57,294.22/85,945.48 = 23,980.78/x
  3. Step 3: Cross multiply
    57,294.22x = 85,945.48 × 23,980.78
  4. Step 4: Simplify right side
    57,294.22x = 2,061,039,647.87
  5. Step 5: Solve for x
    x = 2,061,039,647.87/57,294.22
  6. Step 6: Final answer
    x = 35,972.91

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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.