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Finding the Fourth Proportional to 57,293.80, 85,958.93 and 36,364.21

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Solution

The fourth proportional to 57,293.80, 85,958.93 and 36,364.21 is: 54,557.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,293.80 : 85,958.93 = 36,364.21 : x
  2. Step 2: Convert to fraction form
    57,293.80/85,958.93 = 36,364.21/x
  3. Step 3: Cross multiply
    57,293.80x = 85,958.93 × 36,364.21
  4. Step 4: Simplify right side
    57,293.80x = 3,125,828,581.90
  5. Step 5: Solve for x
    x = 3,125,828,581.90/57,293.80
  6. Step 6: Final answer
    x = 54,557.89

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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.