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Finding the Fourth Proportional to 55,160.70, 82,722.48 and 17,711.58

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Solution

The fourth proportional to 55,160.70, 82,722.48 and 17,711.58 is: 26,561.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,160.70 : 82,722.48 = 17,711.58 : x
  2. Step 2: Convert to fraction form
    55,160.70/82,722.48 = 17,711.58/x
  3. Step 3: Cross multiply
    55,160.70x = 82,722.48 × 17,711.58
  4. Step 4: Simplify right side
    55,160.70x = 1,465,145,822.32
  5. Step 5: Solve for x
    x = 1,465,145,822.32/55,160.70
  6. Step 6: Final answer
    x = 26,561.41

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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.