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Finding the Fourth Proportional to 45,329.78, 67,928.12 and 22,809.48

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Solution

The fourth proportional to 45,329.78, 67,928.12 and 22,809.48 is: 34,180.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,329.78 : 67,928.12 = 22,809.48 : x
  2. Step 2: Convert to fraction form
    45,329.78/67,928.12 = 22,809.48/x
  3. Step 3: Cross multiply
    45,329.78x = 67,928.12 × 22,809.48
  4. Step 4: Simplify right side
    45,329.78x = 1,549,404,980.53
  5. Step 5: Solve for x
    x = 1,549,404,980.53/45,329.78
  6. Step 6: Final answer
    x = 34,180.73

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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.