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Finding the Fourth Proportional to 28,936.40, 43,372.20 and 16,462.40

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Solution

The fourth proportional to 28,936.40, 43,372.20 and 16,462.40 is: 24,675.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,936.40 : 43,372.20 = 16,462.40 : x
  2. Step 2: Convert to fraction form
    28,936.40/43,372.20 = 16,462.40/x
  3. Step 3: Cross multiply
    28,936.40x = 43,372.20 × 16,462.40
  4. Step 4: Simplify right side
    28,936.40x = 714,010,505.28
  5. Step 5: Solve for x
    x = 714,010,505.28/28,936.40
  6. Step 6: Final answer
    x = 24,675.17

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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.