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Finding the Fourth Proportional to 6,999.92, 10,484.12 and 4,031.33

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Solution

The fourth proportional to 6,999.92, 10,484.12 and 4,031.33 is: 6,037.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,999.92 : 10,484.12 = 4,031.33 : x
  2. Step 2: Convert to fraction form
    6,999.92/10,484.12 = 4,031.33/x
  3. Step 3: Cross multiply
    6,999.92x = 10,484.12 × 4,031.33
  4. Step 4: Simplify right side
    6,999.92x = 42,264,874.90
  5. Step 5: Solve for x
    x = 42,264,874.90/6,999.92
  6. Step 6: Final answer
    x = 6,037.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.