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Finding the Fourth Proportional to 39,662.56, 59,476.56 and 11,954.08

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Solution

The fourth proportional to 39,662.56, 59,476.56 and 11,954.08 is: 17,925.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,662.56 : 59,476.56 = 11,954.08 : x
  2. Step 2: Convert to fraction form
    39,662.56/59,476.56 = 11,954.08/x
  3. Step 3: Cross multiply
    39,662.56x = 59,476.56 × 11,954.08
  4. Step 4: Simplify right side
    39,662.56x = 710,987,556.36
  5. Step 5: Solve for x
    x = 710,987,556.36/39,662.56
  6. Step 6: Final answer
    x = 17,925.91

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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.