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Finding the Fourth Proportional to 65,814.48, 90,826.44 and 37,519.44

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Solution

The fourth proportional to 65,814.48, 90,826.44 and 37,519.44 is: 51,778.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,814.48 : 90,826.44 = 37,519.44 : x
  2. Step 2: Convert to fraction form
    65,814.48/90,826.44 = 37,519.44/x
  3. Step 3: Cross multiply
    65,814.48x = 90,826.44 × 37,519.44
  4. Step 4: Simplify right side
    65,814.48x = 3,407,757,165.99
  5. Step 5: Solve for x
    x = 3,407,757,165.99/65,814.48
  6. Step 6: Final answer
    x = 51,778.23

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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.