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Finding the Fourth Proportional to 14,573.70, 21,860.55 and 8,331.30

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Solution

The fourth proportional to 14,573.70, 21,860.55 and 8,331.30 is: 12,496.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,573.70 : 21,860.55 = 8,331.30 : x
  2. Step 2: Convert to fraction form
    14,573.70/21,860.55 = 8,331.30/x
  3. Step 3: Cross multiply
    14,573.70x = 21,860.55 × 8,331.30
  4. Step 4: Simplify right side
    14,573.70x = 182,126,800.22
  5. Step 5: Solve for x
    x = 182,126,800.22/14,573.70
  6. Step 6: Final answer
    x = 12,496.95

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Similar ratio
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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.