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Finding the Fourth Proportional to 55,810.65, 83,727.51 and 18,372.97

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Solution

The fourth proportional to 55,810.65, 83,727.51 and 18,372.97 is: 27,563.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,810.65 : 83,727.51 = 18,372.97 : x
  2. Step 2: Convert to fraction form
    55,810.65/83,727.51 = 18,372.97/x
  3. Step 3: Cross multiply
    55,810.65x = 83,727.51 × 18,372.97
  4. Step 4: Simplify right side
    55,810.65x = 1,538,323,202.96
  5. Step 5: Solve for x
    x = 1,538,323,202.96/55,810.65
  6. Step 6: Final answer
    x = 27,563.25

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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.