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Finding the Fourth Proportional to 36,698.79, 50,668.72 and 28,185.70

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Solution

The fourth proportional to 36,698.79, 50,668.72 and 28,185.70 is: 38,914.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,698.79 : 50,668.72 = 28,185.70 : x
  2. Step 2: Convert to fraction form
    36,698.79/50,668.72 = 28,185.70/x
  3. Step 3: Cross multiply
    36,698.79x = 50,668.72 × 28,185.70
  4. Step 4: Simplify right side
    36,698.79x = 1,428,133,154.86
  5. Step 5: Solve for x
    x = 1,428,133,154.86/36,698.79
  6. Step 6: Final answer
    x = 38,914.99

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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.