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Finding the Fourth Proportional to 61,517.67, 84,894 and 34,668.80

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Solution

The fourth proportional to 61,517.67, 84,894 and 34,668.80 is: 47,842.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,517.67 : 84,894 = 34,668.80 : x
  2. Step 2: Convert to fraction form
    61,517.67/84,894 = 34,668.80/x
  3. Step 3: Cross multiply
    61,517.67x = 84,894 × 34,668.80
  4. Step 4: Simplify right side
    61,517.67x = 2,943,172,682.73
  5. Step 5: Solve for x
    x = 2,943,172,682.73/61,517.67
  6. Step 6: Final answer
    x = 47,842.72

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1.5x scale

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.