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Finding the Fourth Proportional to 17,769.60, 26,654.40 and 14,918.40

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Solution

The fourth proportional to 17,769.60, 26,654.40 and 14,918.40 is: 22,377.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,769.60 : 26,654.40 = 14,918.40 : x
  2. Step 2: Convert to fraction form
    17,769.60/26,654.40 = 14,918.40/x
  3. Step 3: Cross multiply
    17,769.60x = 26,654.40 × 14,918.40
  4. Step 4: Simplify right side
    17,769.60x = 397,641,000.96
  5. Step 5: Solve for x
    x = 397,641,000.96/17,769.60
  6. Step 6: Final answer
    x = 22,377.60

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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.