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Finding the Fourth Proportional to 12,119, 18,167.16 and 11,036.84

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Solution

The fourth proportional to 12,119, 18,167.16 and 11,036.84 is: 16,544.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,119 : 18,167.16 = 11,036.84 : x
  2. Step 2: Convert to fraction form
    12,119/18,167.16 = 11,036.84/x
  3. Step 3: Cross multiply
    12,119x = 18,167.16 × 11,036.84
  4. Step 4: Simplify right side
    12,119x = 200,508,038.17
  5. Step 5: Solve for x
    x = 200,508,038.17/12,119
  6. Step 6: Final answer
    x = 16,544.93

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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.