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Finding the Fourth Proportional to 65,079.39, 89,817.44 and 36,784.83

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Solution

The fourth proportional to 65,079.39, 89,817.44 and 36,784.83 is: 50,767.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,079.39 : 89,817.44 = 36,784.83 : x
  2. Step 2: Convert to fraction form
    65,079.39/89,817.44 = 36,784.83/x
  3. Step 3: Cross multiply
    65,079.39x = 89,817.44 × 36,784.83
  4. Step 4: Simplify right side
    65,079.39x = 3,303,919,077.51
  5. Step 5: Solve for x
    x = 3,303,919,077.51/65,079.39
  6. Step 6: Final answer
    x = 50,767.52

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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.