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Finding the Fourth Proportional to 55,595, 83,401.14 and 18,667.64

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Solution

The fourth proportional to 55,595, 83,401.14 and 18,667.64 is: 28,004.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,595 : 83,401.14 = 18,667.64 : x
  2. Step 2: Convert to fraction form
    55,595/83,401.14 = 18,667.64/x
  3. Step 3: Cross multiply
    55,595x = 83,401.14 × 18,667.64
  4. Step 4: Simplify right side
    55,595x = 1,556,902,457.11
  5. Step 5: Solve for x
    x = 1,556,902,457.11/55,595
  6. Step 6: Final answer
    x = 28,004.36

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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.