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Finding the Fourth Proportional to 35,765.91, 53,648.61 and 8,747.91

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Solution

The fourth proportional to 35,765.91, 53,648.61 and 8,747.91 is: 13,121.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,765.91 : 53,648.61 = 8,747.91 : x
  2. Step 2: Convert to fraction form
    35,765.91/53,648.61 = 8,747.91/x
  3. Step 3: Cross multiply
    35,765.91x = 53,648.61 × 8,747.91
  4. Step 4: Simplify right side
    35,765.91x = 469,313,211.91
  5. Step 5: Solve for x
    x = 469,313,211.91/35,765.91
  6. Step 6: Final answer
    x = 13,121.80

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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.