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Finding the Fourth Proportional to 37,958.66, 56,932.98 and 11,661.20

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Solution

The fourth proportional to 37,958.66, 56,932.98 and 11,661.20 is: 17,490.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,958.66 : 56,932.98 = 11,661.20 : x
  2. Step 2: Convert to fraction form
    37,958.66/56,932.98 = 11,661.20/x
  3. Step 3: Cross multiply
    37,958.66x = 56,932.98 × 11,661.20
  4. Step 4: Simplify right side
    37,958.66x = 663,906,866.38
  5. Step 5: Solve for x
    x = 663,906,866.38/37,958.66
  6. Step 6: Final answer
    x = 17,490.26

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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.