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Finding the Fourth Proportional to 12,997.00, 19,495.49 and 5,103.23

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Solution

The fourth proportional to 12,997.00, 19,495.49 and 5,103.23 is: 7,654.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,997.00 : 19,495.49 = 5,103.23 : x
  2. Step 2: Convert to fraction form
    12,997.00/19,495.49 = 5,103.23/x
  3. Step 3: Cross multiply
    12,997.00x = 19,495.49 × 5,103.23
  4. Step 4: Simplify right side
    12,997.00x = 99,489,984.81
  5. Step 5: Solve for x
    x = 99,489,984.81/12,997.00
  6. Step 6: Final answer
    x = 7,654.84

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Double scale
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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.