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Finding the Fourth Proportional to 33,778.76, 50,668.12 and 9,154.76

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Solution

The fourth proportional to 33,778.76, 50,668.12 and 9,154.76 is: 13,732.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,778.76 : 50,668.12 = 9,154.76 : x
  2. Step 2: Convert to fraction form
    33,778.76/50,668.12 = 9,154.76/x
  3. Step 3: Cross multiply
    33,778.76x = 50,668.12 × 9,154.76
  4. Step 4: Simplify right side
    33,778.76x = 463,854,478.25
  5. Step 5: Solve for x
    x = 463,854,478.25/33,778.76
  6. Step 6: Final answer
    x = 13,732.13

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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.