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Finding the Fourth Proportional to 39,208.54, 58,779.75 and 17,005.20

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Solution

The fourth proportional to 39,208.54, 58,779.75 and 17,005.20 is: 25,493.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,208.54 : 58,779.75 = 17,005.20 : x
  2. Step 2: Convert to fraction form
    39,208.54/58,779.75 = 17,005.20/x
  3. Step 3: Cross multiply
    39,208.54x = 58,779.75 × 17,005.20
  4. Step 4: Simplify right side
    39,208.54x = 999,561,365.54
  5. Step 5: Solve for x
    x = 999,561,365.54/39,208.54
  6. Step 6: Final answer
    x = 25,493.46

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.