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Finding the Fourth Proportional to 65,060.82, 89,781.21 and 36,767.58

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Solution

The fourth proportional to 65,060.82, 89,781.21 and 36,767.58 is: 50,737.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,060.82 : 89,781.21 = 36,767.58 : x
  2. Step 2: Convert to fraction form
    65,060.82/89,781.21 = 36,767.58/x
  3. Step 3: Cross multiply
    65,060.82x = 89,781.21 × 36,767.58
  4. Step 4: Simplify right side
    65,060.82x = 3,301,037,821.17
  5. Step 5: Solve for x
    x = 3,301,037,821.17/65,060.82
  6. Step 6: Final answer
    x = 50,737.72

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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.