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Finding the Fourth Proportional to 12,099.51, 18,239.04 and 11,048.47

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Solution

The fourth proportional to 12,099.51, 18,239.04 and 11,048.47 is: 16,654.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,099.51 : 18,239.04 = 11,048.47 : x
  2. Step 2: Convert to fraction form
    12,099.51/18,239.04 = 11,048.47/x
  3. Step 3: Cross multiply
    12,099.51x = 18,239.04 × 11,048.47
  4. Step 4: Simplify right side
    12,099.51x = 201,513,486.27
  5. Step 5: Solve for x
    x = 201,513,486.27/12,099.51
  6. Step 6: Final answer
    x = 16,654.68

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.