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Finding the Fourth Proportional to 36,861, 50,866.54 and 20,946.93

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Solution

The fourth proportional to 36,861, 50,866.54 and 20,946.93 is: 28,905.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,861 : 50,866.54 = 20,946.93 : x
  2. Step 2: Convert to fraction form
    36,861/50,866.54 = 20,946.93/x
  3. Step 3: Cross multiply
    36,861x = 50,866.54 × 20,946.93
  4. Step 4: Simplify right side
    36,861x = 1,065,497,852.72
  5. Step 5: Solve for x
    x = 1,065,497,852.72/36,861
  6. Step 6: Final answer
    x = 28,905.83

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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.