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Finding the Fourth Proportional to 57,695.40, 86,613.30 and 36,635.40

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Solution

The fourth proportional to 57,695.40, 86,613.30 and 36,635.40 is: 54,997.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,695.40 : 86,613.30 = 36,635.40 : x
  2. Step 2: Convert to fraction form
    57,695.40/86,613.30 = 36,635.40/x
  3. Step 3: Cross multiply
    57,695.40x = 86,613.30 × 36,635.40
  4. Step 4: Simplify right side
    57,695.40x = 3,173,112,890.82
  5. Step 5: Solve for x
    x = 3,173,112,890.82/57,695.40
  6. Step 6: Final answer
    x = 54,997.68

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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.