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Finding the Fourth Proportional to 18,796.58, 28,192.88 and 9,908.35

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Solution

The fourth proportional to 18,796.58, 28,192.88 and 9,908.35 is: 14,861.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,796.58 : 28,192.88 = 9,908.35 : x
  2. Step 2: Convert to fraction form
    18,796.58/28,192.88 = 9,908.35/x
  3. Step 3: Cross multiply
    18,796.58x = 28,192.88 × 9,908.35
  4. Step 4: Simplify right side
    18,796.58x = 279,344,876.84
  5. Step 5: Solve for x
    x = 279,344,876.84/18,796.58
  6. Step 6: Final answer
    x = 14,861.47

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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.