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Finding the Fourth Proportional to 64,609.93, 89,169.72 and 36,315.62

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Solution

The fourth proportional to 64,609.93, 89,169.72 and 36,315.62 is: 50,120.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,609.93 : 89,169.72 = 36,315.62 : x
  2. Step 2: Convert to fraction form
    64,609.93/89,169.72 = 36,315.62/x
  3. Step 3: Cross multiply
    64,609.93x = 89,169.72 × 36,315.62
  4. Step 4: Simplify right side
    64,609.93x = 3,238,253,419.38
  5. Step 5: Solve for x
    x = 3,238,253,419.38/64,609.93
  6. Step 6: Final answer
    x = 50,120.06

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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.