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Finding the Fourth Proportional to 58,537, 80,781.04 and 31,679.50

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Solution

The fourth proportional to 58,537, 80,781.04 and 31,679.50 is: 43,717.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,537 : 80,781.04 = 31,679.50 : x
  2. Step 2: Convert to fraction form
    58,537/80,781.04 = 31,679.50/x
  3. Step 3: Cross multiply
    58,537x = 80,781.04 × 31,679.50
  4. Step 4: Simplify right side
    58,537x = 2,559,102,956.68
  5. Step 5: Solve for x
    x = 2,559,102,956.68/58,537
  6. Step 6: Final answer
    x = 43,717.70

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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.