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Finding the Fourth Proportional to 8,145.38, 11,252.49 and 5,504.38

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Solution

The fourth proportional to 8,145.38, 11,252.49 and 5,504.38 is: 7,604.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,145.38 : 11,252.49 = 5,504.38 : x
  2. Step 2: Convert to fraction form
    8,145.38/11,252.49 = 5,504.38/x
  3. Step 3: Cross multiply
    8,145.38x = 11,252.49 × 5,504.38
  4. Step 4: Simplify right side
    8,145.38x = 61,937,932.13
  5. Step 5: Solve for x
    x = 61,937,932.13/8,145.38
  6. Step 6: Final answer
    x = 7,604.05

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.