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Finding the Fourth Proportional to 65,643.63, 90,582.80 and 36,954.12

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Solution

The fourth proportional to 65,643.63, 90,582.80 and 36,954.12 is: 50,993.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,643.63 : 90,582.80 = 36,954.12 : x
  2. Step 2: Convert to fraction form
    65,643.63/90,582.80 = 36,954.12/x
  3. Step 3: Cross multiply
    65,643.63x = 90,582.80 × 36,954.12
  4. Step 4: Simplify right side
    65,643.63x = 3,347,407,661.14
  5. Step 5: Solve for x
    x = 3,347,407,661.14/65,643.63
  6. Step 6: Final answer
    x = 50,993.64

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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.