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Finding the Fourth Proportional to 27,005.53, 37,269.43 and 15,069.12

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Solution

The fourth proportional to 27,005.53, 37,269.43 and 15,069.12 is: 20,796.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,005.53 : 37,269.43 = 15,069.12 : x
  2. Step 2: Convert to fraction form
    27,005.53/37,269.43 = 15,069.12/x
  3. Step 3: Cross multiply
    27,005.53x = 37,269.43 × 15,069.12
  4. Step 4: Simplify right side
    27,005.53x = 561,617,513.00
  5. Step 5: Solve for x
    x = 561,617,513.00/27,005.53
  6. Step 6: Final answer
    x = 20,796.39

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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.