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Finding the Fourth Proportional to 64,628.91, 89,191.98 and 36,336.42

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Solution

The fourth proportional to 64,628.91, 89,191.98 and 36,336.42 is: 50,146.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,628.91 : 89,191.98 = 36,336.42 : x
  2. Step 2: Convert to fraction form
    64,628.91/89,191.98 = 36,336.42/x
  3. Step 3: Cross multiply
    64,628.91x = 89,191.98 × 36,336.42
  4. Step 4: Simplify right side
    64,628.91x = 3,240,917,245.91
  5. Step 5: Solve for x
    x = 3,240,917,245.91/64,628.91
  6. Step 6: Final answer
    x = 50,146.56

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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.