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Finding the Fourth Proportional to 61,732.86, 85,191.47 and 33,438.57

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Solution

The fourth proportional to 61,732.86, 85,191.47 and 33,438.57 is: 46,145.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,732.86 : 85,191.47 = 33,438.57 : x
  2. Step 2: Convert to fraction form
    61,732.86/85,191.47 = 33,438.57/x
  3. Step 3: Cross multiply
    61,732.86x = 85,191.47 × 33,438.57
  4. Step 4: Simplify right side
    61,732.86x = 2,848,680,765.81
  5. Step 5: Solve for x
    x = 2,848,680,765.81/61,732.86
  6. Step 6: Final answer
    x = 46,145.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.