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Finding the Fourth Proportional to 7,310.92, 10,086.90 and 4,166.92

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Solution

The fourth proportional to 7,310.92, 10,086.90 and 4,166.92 is: 5,749.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,310.92 : 10,086.90 = 4,166.92 : x
  2. Step 2: Convert to fraction form
    7,310.92/10,086.90 = 4,166.92/x
  3. Step 3: Cross multiply
    7,310.92x = 10,086.90 × 4,166.92
  4. Step 4: Simplify right side
    7,310.92x = 42,031,305.35
  5. Step 5: Solve for x
    x = 42,031,305.35/7,310.92
  6. Step 6: Final answer
    x = 5,749.11

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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.