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Finding the Fourth Proportional to 65,017.92, 89,723.66 and 36,337.98

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Solution

The fourth proportional to 65,017.92, 89,723.66 and 36,337.98 is: 50,145.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,017.92 : 89,723.66 = 36,337.98 : x
  2. Step 2: Convert to fraction form
    65,017.92/89,723.66 = 36,337.98/x
  3. Step 3: Cross multiply
    65,017.92x = 89,723.66 × 36,337.98
  4. Step 4: Simplify right side
    65,017.92x = 3,260,376,562.61
  5. Step 5: Solve for x
    x = 3,260,376,562.61/65,017.92
  6. Step 6: Final answer
    x = 50,145.81

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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.