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Finding the Fourth Proportional to 61,334.28, 91,935.81 and 31,722.30

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Solution

The fourth proportional to 61,334.28, 91,935.81 and 31,722.30 is: 47,549.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,334.28 : 91,935.81 = 31,722.30 : x
  2. Step 2: Convert to fraction form
    61,334.28/91,935.81 = 31,722.30/x
  3. Step 3: Cross multiply
    61,334.28x = 91,935.81 × 31,722.30
  4. Step 4: Simplify right side
    61,334.28x = 2,916,415,345.56
  5. Step 5: Solve for x
    x = 2,916,415,345.56/61,334.28
  6. Step 6: Final answer
    x = 47,549.52

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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.