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Finding the Fourth Proportional to 64,809.91, 89,449.28 and 37,950.85

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Solution

The fourth proportional to 64,809.91, 89,449.28 and 37,950.85 is: 52,378.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,809.91 : 89,449.28 = 37,950.85 : x
  2. Step 2: Convert to fraction form
    64,809.91/89,449.28 = 37,950.85/x
  3. Step 3: Cross multiply
    64,809.91x = 89,449.28 × 37,950.85
  4. Step 4: Simplify right side
    64,809.91x = 3,394,676,207.89
  5. Step 5: Solve for x
    x = 3,394,676,207.89/64,809.91
  6. Step 6: Final answer
    x = 52,378.97

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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.