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Finding the Fourth Proportional to 65,896.65, 90,943.89 and 37,606.59

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Solution

The fourth proportional to 65,896.65, 90,943.89 and 37,606.59 is: 51,900.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,896.65 : 90,943.89 = 37,606.59 : x
  2. Step 2: Convert to fraction form
    65,896.65/90,943.89 = 37,606.59/x
  3. Step 3: Cross multiply
    65,896.65x = 90,943.89 × 37,606.59
  4. Step 4: Simplify right side
    65,896.65x = 3,420,089,584.24
  5. Step 5: Solve for x
    x = 3,420,089,584.24/65,896.65
  6. Step 6: Final answer
    x = 51,900.81

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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.