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Finding the Fourth Proportional to 62,779.98, 86,636.43 and 34,487.49

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Solution

The fourth proportional to 62,779.98, 86,636.43 and 34,487.49 is: 47,592.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,779.98 : 86,636.43 = 34,487.49 : x
  2. Step 2: Convert to fraction form
    62,779.98/86,636.43 = 34,487.49/x
  3. Step 3: Cross multiply
    62,779.98x = 86,636.43 × 34,487.49
  4. Step 4: Simplify right side
    62,779.98x = 2,987,873,013.26
  5. Step 5: Solve for x
    x = 2,987,873,013.26/62,779.98
  6. Step 6: Final answer
    x = 47,592.77

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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.