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Finding the Fourth Proportional to 36,605.60, 54,922.80 and 14,415.20

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Solution

The fourth proportional to 36,605.60, 54,922.80 and 14,415.20 is: 21,628.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,605.60 : 54,922.80 = 14,415.20 : x
  2. Step 2: Convert to fraction form
    36,605.60/54,922.80 = 14,415.20/x
  3. Step 3: Cross multiply
    36,605.60x = 54,922.80 × 14,415.20
  4. Step 4: Simplify right side
    36,605.60x = 791,723,146.56
  5. Step 5: Solve for x
    x = 791,723,146.56/36,605.60
  6. Step 6: Final answer
    x = 21,628.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.