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Finding the Fourth Proportional to 7,181.77, 9,910.06 and 4,386.73

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Solution

The fourth proportional to 7,181.77, 9,910.06 and 4,386.73 is: 6,053.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,181.77 : 9,910.06 = 4,386.73 : x
  2. Step 2: Convert to fraction form
    7,181.77/9,910.06 = 4,386.73/x
  3. Step 3: Cross multiply
    7,181.77x = 9,910.06 × 4,386.73
  4. Step 4: Simplify right side
    7,181.77x = 43,472,757.50
  5. Step 5: Solve for x
    x = 43,472,757.50/7,181.77
  6. Step 6: Final answer
    x = 6,053.21

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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.