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Finding the Fourth Proportional to 8,488.92, 11,714.83 and 4,712.33

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Solution

The fourth proportional to 8,488.92, 11,714.83 and 4,712.33 is: 6,503.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,488.92 : 11,714.83 = 4,712.33 : x
  2. Step 2: Convert to fraction form
    8,488.92/11,714.83 = 4,712.33/x
  3. Step 3: Cross multiply
    8,488.92x = 11,714.83 × 4,712.33
  4. Step 4: Simplify right side
    8,488.92x = 55,204,144.85
  5. Step 5: Solve for x
    x = 55,204,144.85/8,488.92
  6. Step 6: Final answer
    x = 6,503.08

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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.