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Finding the Fourth Proportional to 18,564.73, 27,854.38 and 8,169.19

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Solution

The fourth proportional to 18,564.73, 27,854.38 and 8,169.19 is: 12,256.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,564.73 : 27,854.38 = 8,169.19 : x
  2. Step 2: Convert to fraction form
    18,564.73/27,854.38 = 8,169.19/x
  3. Step 3: Cross multiply
    18,564.73x = 27,854.38 × 8,169.19
  4. Step 4: Simplify right side
    18,564.73x = 227,547,663.13
  5. Step 5: Solve for x
    x = 227,547,663.13/18,564.73
  6. Step 6: Final answer
    x = 12,256.99

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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.