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Finding the Fourth Proportional to 71,337.45, 107,049.92 and 31,927.89

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Solution

The fourth proportional to 71,337.45, 107,049.92 and 31,927.89 is: 47,911.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,337.45 : 107,049.92 = 31,927.89 : x
  2. Step 2: Convert to fraction form
    71,337.45/107,049.92 = 31,927.89/x
  3. Step 3: Cross multiply
    71,337.45x = 107,049.92 × 31,927.89
  4. Step 4: Simplify right side
    71,337.45x = 3,417,877,910.63
  5. Step 5: Solve for x
    x = 3,417,877,910.63/71,337.45
  6. Step 6: Final answer
    x = 47,911.41

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1.5x scale

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.