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Finding the Fourth Proportional to 61,676.48, 92,417.82 and 47,670.79

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Solution

The fourth proportional to 61,676.48, 92,417.82 and 47,670.79 is: 71,431.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,676.48 : 92,417.82 = 47,670.79 : x
  2. Step 2: Convert to fraction form
    61,676.48/92,417.82 = 47,670.79/x
  3. Step 3: Cross multiply
    61,676.48x = 92,417.82 × 47,670.79
  4. Step 4: Simplify right side
    61,676.48x = 4,405,630,489.48
  5. Step 5: Solve for x
    x = 4,405,630,489.48/61,676.48
  6. Step 6: Final answer
    x = 71,431.29

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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.