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Finding the Fourth Proportional to 62,676.21, 86,492.70 and 34,381.71

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Solution

The fourth proportional to 62,676.21, 86,492.70 and 34,381.71 is: 47,446.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,676.21 : 86,492.70 = 34,381.71 : x
  2. Step 2: Convert to fraction form
    62,676.21/86,492.70 = 34,381.71/x
  3. Step 3: Cross multiply
    62,676.21x = 86,492.70 × 34,381.71
  4. Step 4: Simplify right side
    62,676.21x = 2,973,766,928.52
  5. Step 5: Solve for x
    x = 2,973,766,928.52/62,676.21
  6. Step 6: Final answer
    x = 47,446.50

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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.