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Finding the Fourth Proportional to 8,254.38, 11,391.05 and 4,528.38

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Solution

The fourth proportional to 8,254.38, 11,391.05 and 4,528.38 is: 6,249.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,254.38 : 11,391.05 = 4,528.38 : x
  2. Step 2: Convert to fraction form
    8,254.38/11,391.05 = 4,528.38/x
  3. Step 3: Cross multiply
    8,254.38x = 11,391.05 × 4,528.38
  4. Step 4: Simplify right side
    8,254.38x = 51,583,003.00
  5. Step 5: Solve for x
    x = 51,583,003.00/8,254.38
  6. Step 6: Final answer
    x = 6,249.17

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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.