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Finding the Fourth Proportional to 30,481.73, 45,726.84 and 9,423.48

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Solution

The fourth proportional to 30,481.73, 45,726.84 and 9,423.48 is: 14,136.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,481.73 : 45,726.84 = 9,423.48 : x
  2. Step 2: Convert to fraction form
    30,481.73/45,726.84 = 9,423.48/x
  3. Step 3: Cross multiply
    30,481.73x = 45,726.84 × 9,423.48
  4. Step 4: Simplify right side
    30,481.73x = 430,905,962.20
  5. Step 5: Solve for x
    x = 430,905,962.20/30,481.73
  6. Step 6: Final answer
    x = 14,136.53

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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.