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Finding the Fourth Proportional to 45,305.82, 67,953.45 and 12,028.47

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Solution

The fourth proportional to 45,305.82, 67,953.45 and 12,028.47 is: 18,041.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,305.82 : 67,953.45 = 12,028.47 : x
  2. Step 2: Convert to fraction form
    45,305.82/67,953.45 = 12,028.47/x
  3. Step 3: Cross multiply
    45,305.82x = 67,953.45 × 12,028.47
  4. Step 4: Simplify right side
    45,305.82x = 817,376,034.72
  5. Step 5: Solve for x
    x = 817,376,034.72/45,305.82
  6. Step 6: Final answer
    x = 18,041.30

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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.