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Finding the Fourth Proportional to 58,792.30, 81,132.60 and 31,935.67

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Solution

The fourth proportional to 58,792.30, 81,132.60 and 31,935.67 is: 44,070.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,792.30 : 81,132.60 = 31,935.67 : x
  2. Step 2: Convert to fraction form
    58,792.30/81,132.60 = 31,935.67/x
  3. Step 3: Cross multiply
    58,792.30x = 81,132.60 × 31,935.67
  4. Step 4: Simplify right side
    58,792.30x = 2,591,023,856.77
  5. Step 5: Solve for x
    x = 2,591,023,856.77/58,792.30
  6. Step 6: Final answer
    x = 44,070.80

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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.