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Finding the Fourth Proportional to 17,869.69, 24,644.03 and 11,155.94

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Solution

The fourth proportional to 17,869.69, 24,644.03 and 11,155.94 is: 15,385.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,869.69 : 24,644.03 = 11,155.94 : x
  2. Step 2: Convert to fraction form
    17,869.69/24,644.03 = 11,155.94/x
  3. Step 3: Cross multiply
    17,869.69x = 24,644.03 × 11,155.94
  4. Step 4: Simplify right side
    17,869.69x = 274,927,320.04
  5. Step 5: Solve for x
    x = 274,927,320.04/17,869.69
  6. Step 6: Final answer
    x = 15,385.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.