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Finding the Fourth Proportional to 61,373.28, 91,861.92 and 31,750.32

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Solution

The fourth proportional to 61,373.28, 91,861.92 and 31,750.32 is: 47,523.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,373.28 : 91,861.92 = 31,750.32 : x
  2. Step 2: Convert to fraction form
    61,373.28/91,861.92 = 31,750.32/x
  3. Step 3: Cross multiply
    61,373.28x = 91,861.92 × 31,750.32
  4. Step 4: Simplify right side
    61,373.28x = 2,916,645,355.81
  5. Step 5: Solve for x
    x = 2,916,645,355.81/61,373.28
  6. Step 6: Final answer
    x = 47,523.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.