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Finding the Fourth Proportional to 13,654.76, 18,844.98 and 8,353.10

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Solution

The fourth proportional to 13,654.76, 18,844.98 and 8,353.10 is: 11,528.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,654.76 : 18,844.98 = 8,353.10 : x
  2. Step 2: Convert to fraction form
    13,654.76/18,844.98 = 8,353.10/x
  3. Step 3: Cross multiply
    13,654.76x = 18,844.98 × 8,353.10
  4. Step 4: Simplify right side
    13,654.76x = 157,414,002.44
  5. Step 5: Solve for x
    x = 157,414,002.44/13,654.76
  6. Step 6: Final answer
    x = 11,528.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.