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Finding the Fourth Proportional to 37,668.50, 51,984.16 and 20,901.50

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Solution

The fourth proportional to 37,668.50, 51,984.16 and 20,901.50 is: 28,844.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,668.50 : 51,984.16 = 20,901.50 : x
  2. Step 2: Convert to fraction form
    37,668.50/51,984.16 = 20,901.50/x
  3. Step 3: Cross multiply
    37,668.50x = 51,984.16 × 20,901.50
  4. Step 4: Simplify right side
    37,668.50x = 1,086,546,920.24
  5. Step 5: Solve for x
    x = 1,086,546,920.24/37,668.50
  6. Step 6: Final answer
    x = 28,844.97

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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.