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Finding the Fourth Proportional to 18,553.16, 27,836.58 and 8,695.64

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Solution

The fourth proportional to 18,553.16, 27,836.58 and 8,695.64 is: 13,046.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,553.16 : 27,836.58 = 8,695.64 : x
  2. Step 2: Convert to fraction form
    18,553.16/27,836.58 = 8,695.64/x
  3. Step 3: Cross multiply
    18,553.16x = 27,836.58 × 8,695.64
  4. Step 4: Simplify right side
    18,553.16x = 242,056,878.51
  5. Step 5: Solve for x
    x = 242,056,878.51/18,553.16
  6. Step 6: Final answer
    x = 13,046.67

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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.