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Finding the Fourth Proportional to 65,865.08, 90,892.80 and 36,793.82

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Solution

The fourth proportional to 65,865.08, 90,892.80 and 36,793.82 is: 50,774.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,865.08 : 90,892.80 = 36,793.82 : x
  2. Step 2: Convert to fraction form
    65,865.08/90,892.80 = 36,793.82/x
  3. Step 3: Cross multiply
    65,865.08x = 90,892.80 × 36,793.82
  4. Step 4: Simplify right side
    65,865.08x = 3,344,293,549.73
  5. Step 5: Solve for x
    x = 3,344,293,549.73/65,865.08
  6. Step 6: Final answer
    x = 50,774.91

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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.