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Finding the Fourth Proportional to 28,241.96, 42,362.94 and 9,769.64

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Solution

The fourth proportional to 28,241.96, 42,362.94 and 9,769.64 is: 14,654.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,241.96 : 42,362.94 = 9,769.64 : x
  2. Step 2: Convert to fraction form
    28,241.96/42,362.94 = 9,769.64/x
  3. Step 3: Cross multiply
    28,241.96x = 42,362.94 × 9,769.64
  4. Step 4: Simplify right side
    28,241.96x = 413,870,673.14
  5. Step 5: Solve for x
    x = 413,870,673.14/28,241.96
  6. Step 6: Final answer
    x = 14,654.46

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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.