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Finding the Fourth Proportional to 8,239.62, 11,370.24 and 4,703.16

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Solution

The fourth proportional to 8,239.62, 11,370.24 and 4,703.16 is: 6,490.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,239.62 : 11,370.24 = 4,703.16 : x
  2. Step 2: Convert to fraction form
    8,239.62/11,370.24 = 4,703.16/x
  3. Step 3: Cross multiply
    8,239.62x = 11,370.24 × 4,703.16
  4. Step 4: Simplify right side
    8,239.62x = 53,476,057.96
  5. Step 5: Solve for x
    x = 53,476,057.96/8,239.62
  6. Step 6: Final answer
    x = 6,490.11

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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.