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Finding the Fourth Proportional to 39,788.67, 59,673.08 and 11,703.13

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Solution

The fourth proportional to 39,788.67, 59,673.08 and 11,703.13 is: 17,551.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,788.67 : 59,673.08 = 11,703.13 : x
  2. Step 2: Convert to fraction form
    39,788.67/59,673.08 = 11,703.13/x
  3. Step 3: Cross multiply
    39,788.67x = 59,673.08 × 11,703.13
  4. Step 4: Simplify right side
    39,788.67x = 698,361,754.22
  5. Step 5: Solve for x
    x = 698,361,754.22/39,788.67
  6. Step 6: Final answer
    x = 17,551.78

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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.