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Finding the Fourth Proportional to 45,392.70, 68,115.69 and 19,095.42

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Solution

The fourth proportional to 45,392.70, 68,115.69 and 19,095.42 is: 28,654.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,392.70 : 68,115.69 = 19,095.42 : x
  2. Step 2: Convert to fraction form
    45,392.70/68,115.69 = 19,095.42/x
  3. Step 3: Cross multiply
    45,392.70x = 68,115.69 × 19,095.42
  4. Step 4: Simplify right side
    45,392.70x = 1,300,697,709.14
  5. Step 5: Solve for x
    x = 1,300,697,709.14/45,392.70
  6. Step 6: Final answer
    x = 28,654.34

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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.