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Finding the Fourth Proportional to 65,912.13, 90,975.02 and 37,634.22

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Solution

The fourth proportional to 65,912.13, 90,975.02 and 37,634.22 is: 51,944.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,912.13 : 90,975.02 = 37,634.22 : x
  2. Step 2: Convert to fraction form
    65,912.13/90,975.02 = 37,634.22/x
  3. Step 3: Cross multiply
    65,912.13x = 90,975.02 × 37,634.22
  4. Step 4: Simplify right side
    65,912.13x = 3,423,773,729.01
  5. Step 5: Solve for x
    x = 3,423,773,729.01/65,912.13
  6. Step 6: Final answer
    x = 51,944.52

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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.