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Finding the Fourth Proportional to 77,912.57, 116,776.55 and 35,757.12

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Solution

The fourth proportional to 77,912.57, 116,776.55 and 35,757.12 is: 53,593.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,912.57 : 116,776.55 = 35,757.12 : x
  2. Step 2: Convert to fraction form
    77,912.57/116,776.55 = 35,757.12/x
  3. Step 3: Cross multiply
    77,912.57x = 116,776.55 × 35,757.12
  4. Step 4: Simplify right side
    77,912.57x = 4,175,592,932.75
  5. Step 5: Solve for x
    x = 4,175,592,932.75/77,912.57
  6. Step 6: Final answer
    x = 53,593.32

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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.