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Finding the Fourth Proportional to 39,809.80, 59,628.30 and 34,625.80

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Solution

The fourth proportional to 39,809.80, 59,628.30 and 34,625.80 is: 51,863.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,809.80 : 59,628.30 = 34,625.80 : x
  2. Step 2: Convert to fraction form
    39,809.80/59,628.30 = 34,625.80/x
  3. Step 3: Cross multiply
    39,809.80x = 59,628.30 × 34,625.80
  4. Step 4: Simplify right side
    39,809.80x = 2,064,677,590.14
  5. Step 5: Solve for x
    x = 2,064,677,590.14/39,809.80
  6. Step 6: Final answer
    x = 51,863.55

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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.