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Finding the Fourth Proportional to 35,954.60, 53,920.17 and 11,932.45

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Solution

The fourth proportional to 35,954.60, 53,920.17 and 11,932.45 is: 17,894.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,954.60 : 53,920.17 = 11,932.45 : x
  2. Step 2: Convert to fraction form
    35,954.60/53,920.17 = 11,932.45/x
  3. Step 3: Cross multiply
    35,954.60x = 53,920.17 × 11,932.45
  4. Step 4: Simplify right side
    35,954.60x = 643,399,807.65
  5. Step 5: Solve for x
    x = 643,399,807.65/35,954.60
  6. Step 6: Final answer
    x = 17,894.78

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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.