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Finding the Fourth Proportional to 18,324.62, 27,484.69 and 7,798.87

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Solution

The fourth proportional to 18,324.62, 27,484.69 and 7,798.87 is: 11,697.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,324.62 : 27,484.69 = 7,798.87 : x
  2. Step 2: Convert to fraction form
    18,324.62/27,484.69 = 7,798.87/x
  3. Step 3: Cross multiply
    18,324.62x = 27,484.69 × 7,798.87
  4. Step 4: Simplify right side
    18,324.62x = 214,349,524.30
  5. Step 5: Solve for x
    x = 214,349,524.30/18,324.62
  6. Step 6: Final answer
    x = 11,697.35

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Half scale
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Double scale
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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.