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Finding the Fourth Proportional to 65,757.88, 90,749.52 and 37,458.16

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Solution

The fourth proportional to 65,757.88, 90,749.52 and 37,458.16 is: 51,694.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,757.88 : 90,749.52 = 37,458.16 : x
  2. Step 2: Convert to fraction form
    65,757.88/90,749.52 = 37,458.16/x
  3. Step 3: Cross multiply
    65,757.88x = 90,749.52 × 37,458.16
  4. Step 4: Simplify right side
    65,757.88x = 3,399,310,040.08
  5. Step 5: Solve for x
    x = 3,399,310,040.08/65,757.88
  6. Step 6: Final answer
    x = 51,694.34

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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.