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Finding the Fourth Proportional to 19,956.58, 27,541.25 and 11,005.99

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Solution

The fourth proportional to 19,956.58, 27,541.25 and 11,005.99 is: 15,188.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,956.58 : 27,541.25 = 11,005.99 : x
  2. Step 2: Convert to fraction form
    19,956.58/27,541.25 = 11,005.99/x
  3. Step 3: Cross multiply
    19,956.58x = 27,541.25 × 11,005.99
  4. Step 4: Simplify right side
    19,956.58x = 303,118,667.06
  5. Step 5: Solve for x
    x = 303,118,667.06/19,956.58
  6. Step 6: Final answer
    x = 15,188.91

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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.