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Finding the Fourth Proportional to 61,311.71, 91,967.61 and 19,195.38

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Solution

The fourth proportional to 61,311.71, 91,967.61 and 19,195.38 is: 28,793.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,311.71 : 91,967.61 = 19,195.38 : x
  2. Step 2: Convert to fraction form
    61,311.71/91,967.61 = 19,195.38/x
  3. Step 3: Cross multiply
    61,311.71x = 91,967.61 × 19,195.38
  4. Step 4: Simplify right side
    61,311.71x = 1,765,353,221.64
  5. Step 5: Solve for x
    x = 1,765,353,221.64/61,311.71
  6. Step 6: Final answer
    x = 28,793.09

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1.5x scale

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.