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Finding the Fourth Proportional to 55,259.79, 82,905.86 and 17,819.11

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Solution

The fourth proportional to 55,259.79, 82,905.86 and 17,819.11 is: 26,733.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,259.79 : 82,905.86 = 17,819.11 : x
  2. Step 2: Convert to fraction form
    55,259.79/82,905.86 = 17,819.11/x
  3. Step 3: Cross multiply
    55,259.79x = 82,905.86 × 17,819.11
  4. Step 4: Simplify right side
    55,259.79x = 1,477,308,476.27
  5. Step 5: Solve for x
    x = 1,477,308,476.27/55,259.79
  6. Step 6: Final answer
    x = 26,733.88

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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.