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Finding the Fourth Proportional to 18,497.28, 27,752.91 and 11,106.89

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Solution

The fourth proportional to 18,497.28, 27,752.91 and 11,106.89 is: 16,664.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,497.28 : 27,752.91 = 11,106.89 : x
  2. Step 2: Convert to fraction form
    18,497.28/27,752.91 = 11,106.89/x
  3. Step 3: Cross multiply
    18,497.28x = 27,752.91 × 11,106.89
  4. Step 4: Simplify right side
    18,497.28x = 308,248,587.93
  5. Step 5: Solve for x
    x = 308,248,587.93/18,497.28
  6. Step 6: Final answer
    x = 16,664.54

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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.