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Finding the Fourth Proportional to 32,763.69, 49,145.57 and 8,139.69

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Solution

The fourth proportional to 32,763.69, 49,145.57 and 8,139.69 is: 12,209.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,763.69 : 49,145.57 = 8,139.69 : x
  2. Step 2: Convert to fraction form
    32,763.69/49,145.57 = 8,139.69/x
  3. Step 3: Cross multiply
    32,763.69x = 49,145.57 × 8,139.69
  4. Step 4: Simplify right side
    32,763.69x = 400,029,663.97
  5. Step 5: Solve for x
    x = 400,029,663.97/32,763.69
  6. Step 6: Final answer
    x = 12,209.54

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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.