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Finding the Fourth Proportional to 18,423.97, 27,635.84 and 5,276.34

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Solution

The fourth proportional to 18,423.97, 27,635.84 and 5,276.34 is: 7,914.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,423.97 : 27,635.84 = 5,276.34 : x
  2. Step 2: Convert to fraction form
    18,423.97/27,635.84 = 5,276.34/x
  3. Step 3: Cross multiply
    18,423.97x = 27,635.84 × 5,276.34
  4. Step 4: Simplify right side
    18,423.97x = 145,816,088.03
  5. Step 5: Solve for x
    x = 145,816,088.03/18,423.97
  6. Step 6: Final answer
    x = 7,914.48

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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.