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Finding the Fourth Proportional to 57,911.34, 86,703.21 and 36,799.05

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Solution

The fourth proportional to 57,911.34, 86,703.21 and 36,799.05 is: 55,094.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,911.34 : 86,703.21 = 36,799.05 : x
  2. Step 2: Convert to fraction form
    57,911.34/86,703.21 = 36,799.05/x
  3. Step 3: Cross multiply
    57,911.34x = 86,703.21 × 36,799.05
  4. Step 4: Simplify right side
    57,911.34x = 3,190,595,572.81
  5. Step 5: Solve for x
    x = 3,190,595,572.81/57,911.34
  6. Step 6: Final answer
    x = 55,094.48

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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.