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Finding the Fourth Proportional to 58,586, 80,855.04 and 38,459.12

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Solution

The fourth proportional to 58,586, 80,855.04 and 38,459.12 is: 53,077.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,586 : 80,855.04 = 38,459.12 : x
  2. Step 2: Convert to fraction form
    58,586/80,855.04 = 38,459.12/x
  3. Step 3: Cross multiply
    58,586x = 80,855.04 × 38,459.12
  4. Step 4: Simplify right side
    58,586x = 3,109,613,685.96
  5. Step 5: Solve for x
    x = 3,109,613,685.96/58,586
  6. Step 6: Final answer
    x = 53,077.76

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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.