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Finding the Fourth Proportional to 65,212.83, 89,993.24 and 36,918.27

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Solution

The fourth proportional to 65,212.83, 89,993.24 and 36,918.27 is: 50,946.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,212.83 : 89,993.24 = 36,918.27 : x
  2. Step 2: Convert to fraction form
    65,212.83/89,993.24 = 36,918.27/x
  3. Step 3: Cross multiply
    65,212.83x = 89,993.24 × 36,918.27
  4. Step 4: Simplify right side
    65,212.83x = 3,322,394,547.90
  5. Step 5: Solve for x
    x = 3,322,394,547.90/65,212.83
  6. Step 6: Final answer
    x = 50,946.95

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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.