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Finding the Fourth Proportional to 65,453.80, 90,326.64 and 36,773.68

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Solution

The fourth proportional to 65,453.80, 90,326.64 and 36,773.68 is: 50,747.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,453.80 : 90,326.64 = 36,773.68 : x
  2. Step 2: Convert to fraction form
    65,453.80/90,326.64 = 36,773.68/x
  3. Step 3: Cross multiply
    65,453.80x = 90,326.64 × 36,773.68
  4. Step 4: Simplify right side
    65,453.80x = 3,321,642,954.84
  5. Step 5: Solve for x
    x = 3,321,642,954.84/65,453.80
  6. Step 6: Final answer
    x = 50,747.90

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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.