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Finding the Fourth Proportional to 28,926.40, 43,389.60 and 16,441.60

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Solution

The fourth proportional to 28,926.40, 43,389.60 and 16,441.60 is: 24,662.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,926.40 : 43,389.60 = 16,441.60 : x
  2. Step 2: Convert to fraction form
    28,926.40/43,389.60 = 16,441.60/x
  3. Step 3: Cross multiply
    28,926.40x = 43,389.60 × 16,441.60
  4. Step 4: Simplify right side
    28,926.40x = 713,394,447.36
  5. Step 5: Solve for x
    x = 713,394,447.36/28,926.40
  6. Step 6: Final answer
    x = 24,662.40

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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.