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Finding the Fourth Proportional to 65,207.76, 89,986.76 and 36,922.56

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Solution

The fourth proportional to 65,207.76, 89,986.76 and 36,922.56 is: 50,953.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,207.76 : 89,986.76 = 36,922.56 : x
  2. Step 2: Convert to fraction form
    65,207.76/89,986.76 = 36,922.56/x
  3. Step 3: Cross multiply
    65,207.76x = 89,986.76 × 36,922.56
  4. Step 4: Simplify right side
    65,207.76x = 3,322,541,545.31
  5. Step 5: Solve for x
    x = 3,322,541,545.31/65,207.76
  6. Step 6: Final answer
    x = 50,953.16

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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.