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Finding the Fourth Proportional to 45,363.88, 68,030.62 and 19,063.72

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Solution

The fourth proportional to 45,363.88, 68,030.62 and 19,063.72 is: 28,589.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,363.88 : 68,030.62 = 19,063.72 : x
  2. Step 2: Convert to fraction form
    45,363.88/68,030.62 = 19,063.72/x
  3. Step 3: Cross multiply
    45,363.88x = 68,030.62 × 19,063.72
  4. Step 4: Simplify right side
    45,363.88x = 1,296,916,691.11
  5. Step 5: Solve for x
    x = 1,296,916,691.11/45,363.88
  6. Step 6: Final answer
    x = 28,589.19

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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.