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Finding the Fourth Proportional to 31,892.34, 47,838.52 and 26,321.70

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Solution

The fourth proportional to 31,892.34, 47,838.52 and 26,321.70 is: 39,482.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,892.34 : 47,838.52 = 26,321.70 : x
  2. Step 2: Convert to fraction form
    31,892.34/47,838.52 = 26,321.70/x
  3. Step 3: Cross multiply
    31,892.34x = 47,838.52 × 26,321.70
  4. Step 4: Simplify right side
    31,892.34x = 1,259,191,171.88
  5. Step 5: Solve for x
    x = 1,259,191,171.88/31,892.34
  6. Step 6: Final answer
    x = 39,482.56

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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.