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Finding the Fourth Proportional to 65,950.80, 91,012.20 and 35,736.38

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Solution

The fourth proportional to 65,950.80, 91,012.20 and 35,736.38 is: 49,316.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,950.80 : 91,012.20 = 35,736.38 : x
  2. Step 2: Convert to fraction form
    65,950.80/91,012.20 = 35,736.38/x
  3. Step 3: Cross multiply
    65,950.80x = 91,012.20 × 35,736.38
  4. Step 4: Simplify right side
    65,950.80x = 3,252,446,563.84
  5. Step 5: Solve for x
    x = 3,252,446,563.84/65,950.80
  6. Step 6: Final answer
    x = 49,316.26

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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.