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Finding the Fourth Proportional to 35,778.81, 53,668.22 and 11,154.81

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Solution

The fourth proportional to 35,778.81, 53,668.22 and 11,154.81 is: 16,732.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,778.81 : 53,668.22 = 11,154.81 : x
  2. Step 2: Convert to fraction form
    35,778.81/53,668.22 = 11,154.81/x
  3. Step 3: Cross multiply
    35,778.81x = 53,668.22 × 11,154.81
  4. Step 4: Simplify right side
    35,778.81x = 598,658,797.14
  5. Step 5: Solve for x
    x = 598,658,797.14/35,778.81
  6. Step 6: Final answer
    x = 16,732.22

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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.