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Finding the Fourth Proportional to 55,888.65, 83,815.20 and 18,441.75

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Solution

The fourth proportional to 55,888.65, 83,815.20 and 18,441.75 is: 27,656.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,888.65 : 83,815.20 = 18,441.75 : x
  2. Step 2: Convert to fraction form
    55,888.65/83,815.20 = 18,441.75/x
  3. Step 3: Cross multiply
    55,888.65x = 83,815.20 × 18,441.75
  4. Step 4: Simplify right side
    55,888.65x = 1,545,698,453.32
  5. Step 5: Solve for x
    x = 1,545,698,453.32/55,888.65
  6. Step 6: Final answer
    x = 27,656.75

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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.