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Finding the Fourth Proportional to 61,675.48, 92,416.32 and 47,669.79

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Solution

The fourth proportional to 61,675.48, 92,416.32 and 47,669.79 is: 71,429.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,675.48 : 92,416.32 = 47,669.79 : x
  2. Step 2: Convert to fraction form
    61,675.48/92,416.32 = 47,669.79/x
  3. Step 3: Cross multiply
    61,675.48x = 92,416.32 × 47,669.79
  4. Step 4: Simplify right side
    61,675.48x = 4,405,466,566.97
  5. Step 5: Solve for x
    x = 4,405,466,566.97/61,675.48
  6. Step 6: Final answer
    x = 71,429.79

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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.