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Finding the Fourth Proportional to 13,769.19, 20,654.15 and 4,410.18

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Solution

The fourth proportional to 13,769.19, 20,654.15 and 4,410.18 is: 6,615.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,769.19 : 20,654.15 = 4,410.18 : x
  2. Step 2: Convert to fraction form
    13,769.19/20,654.15 = 4,410.18/x
  3. Step 3: Cross multiply
    13,769.19x = 20,654.15 × 4,410.18
  4. Step 4: Simplify right side
    13,769.19x = 91,088,497.20
  5. Step 5: Solve for x
    x = 91,088,497.20/13,769.19
  6. Step 6: Final answer
    x = 6,615.39

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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.