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Finding the Fourth Proportional to 52,969.96, 79,381.11 and 39,806.95

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Solution

The fourth proportional to 52,969.96, 79,381.11 and 39,806.95 is: 59,654.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,969.96 : 79,381.11 = 39,806.95 : x
  2. Step 2: Convert to fraction form
    52,969.96/79,381.11 = 39,806.95/x
  3. Step 3: Cross multiply
    52,969.96x = 79,381.11 × 39,806.95
  4. Step 4: Simplify right side
    52,969.96x = 3,159,919,876.71
  5. Step 5: Solve for x
    x = 3,159,919,876.71/52,969.96
  6. Step 6: Final answer
    x = 59,654.94

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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.