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Finding the Fourth Proportional to 45,342.06, 67,943.82 and 19,032.48

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Solution

The fourth proportional to 45,342.06, 67,943.82 and 19,032.48 is: 28,519.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,342.06 : 67,943.82 = 19,032.48 : x
  2. Step 2: Convert to fraction form
    45,342.06/67,943.82 = 19,032.48/x
  3. Step 3: Cross multiply
    45,342.06x = 67,943.82 × 19,032.48
  4. Step 4: Simplify right side
    45,342.06x = 1,293,139,395.27
  5. Step 5: Solve for x
    x = 1,293,139,395.27/45,342.06
  6. Step 6: Final answer
    x = 28,519.64

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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.