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Finding the Fourth Proportional to 36,490.50, 50,358.54 and 20,574.90

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Solution

The fourth proportional to 36,490.50, 50,358.54 and 20,574.90 is: 28,394.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,490.50 : 50,358.54 = 20,574.90 : x
  2. Step 2: Convert to fraction form
    36,490.50/50,358.54 = 20,574.90/x
  3. Step 3: Cross multiply
    36,490.50x = 50,358.54 × 20,574.90
  4. Step 4: Simplify right side
    36,490.50x = 1,036,121,924.65
  5. Step 5: Solve for x
    x = 1,036,121,924.65/36,490.50
  6. Step 6: Final answer
    x = 28,394.29

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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.