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Finding the Fourth Proportional to 45,793.08, 68,718.78 and 19,497.78

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Solution

The fourth proportional to 45,793.08, 68,718.78 and 19,497.78 is: 29,259.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,793.08 : 68,718.78 = 19,497.78 : x
  2. Step 2: Convert to fraction form
    45,793.08/68,718.78 = 19,497.78/x
  3. Step 3: Cross multiply
    45,793.08x = 68,718.78 × 19,497.78
  4. Step 4: Simplify right side
    45,793.08x = 1,339,863,654.31
  5. Step 5: Solve for x
    x = 1,339,863,654.31/45,793.08
  6. Step 6: Final answer
    x = 29,259.09

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1.5x scale

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.