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Finding the Fourth Proportional to 28,899.73, 43,349.59 and 8,123.23

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Solution

The fourth proportional to 28,899.73, 43,349.59 and 8,123.23 is: 12,184.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,899.73 : 43,349.59 = 8,123.23 : x
  2. Step 2: Convert to fraction form
    28,899.73/43,349.59 = 8,123.23/x
  3. Step 3: Cross multiply
    28,899.73x = 43,349.59 × 8,123.23
  4. Step 4: Simplify right side
    28,899.73x = 352,138,561.29
  5. Step 5: Solve for x
    x = 352,138,561.29/28,899.73
  6. Step 6: Final answer
    x = 12,184.84

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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.