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Finding the Fourth Proportional to 18,313.71, 27,470.56 and 6,624.19

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Solution

The fourth proportional to 18,313.71, 27,470.56 and 6,624.19 is: 9,936.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,313.71 : 27,470.56 = 6,624.19 : x
  2. Step 2: Convert to fraction form
    18,313.71/27,470.56 = 6,624.19/x
  3. Step 3: Cross multiply
    18,313.71x = 27,470.56 × 6,624.19
  4. Step 4: Simplify right side
    18,313.71x = 181,970,175.73
  5. Step 5: Solve for x
    x = 181,970,175.73/18,313.71
  6. Step 6: Final answer
    x = 9,936.28

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Double scale
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Similar ratio
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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.