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Finding the Fourth Proportional to 45,651.96, 68,488.83 and 14,487.21

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Solution

The fourth proportional to 45,651.96, 68,488.83 and 14,487.21 is: 21,734.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,651.96 : 68,488.83 = 14,487.21 : x
  2. Step 2: Convert to fraction form
    45,651.96/68,488.83 = 14,487.21/x
  3. Step 3: Cross multiply
    45,651.96x = 68,488.83 × 14,487.21
  4. Step 4: Simplify right side
    45,651.96x = 992,212,062.86
  5. Step 5: Solve for x
    x = 992,212,062.86/45,651.96
  6. Step 6: Final answer
    x = 21,734.27

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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.