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Finding the Fourth Proportional to 36,391.40, 50,216.54 and 20,475.50

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Solution

The fourth proportional to 36,391.40, 50,216.54 and 20,475.50 is: 28,254.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,391.40 : 50,216.54 = 20,475.50 : x
  2. Step 2: Convert to fraction form
    36,391.40/50,216.54 = 20,475.50/x
  3. Step 3: Cross multiply
    36,391.40x = 50,216.54 × 20,475.50
  4. Step 4: Simplify right side
    36,391.40x = 1,028,208,764.77
  5. Step 5: Solve for x
    x = 1,028,208,764.77/36,391.40
  6. Step 6: Final answer
    x = 28,254.17

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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.