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Finding the Fourth Proportional to 62,806.96, 86,675.16 and 34,515.28

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Solution

The fourth proportional to 62,806.96, 86,675.16 and 34,515.28 is: 47,631.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,806.96 : 86,675.16 = 34,515.28 : x
  2. Step 2: Convert to fraction form
    62,806.96/86,675.16 = 34,515.28/x
  3. Step 3: Cross multiply
    62,806.96x = 86,675.16 × 34,515.28
  4. Step 4: Simplify right side
    62,806.96x = 2,991,617,416.44
  5. Step 5: Solve for x
    x = 2,991,617,416.44/62,806.96
  6. Step 6: Final answer
    x = 47,631.94

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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.