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Finding the Fourth Proportional to 7,171.83, 9,900.73 and 4,484.54

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Solution

The fourth proportional to 7,171.83, 9,900.73 and 4,484.54 is: 6,190.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,171.83 : 9,900.73 = 4,484.54 : x
  2. Step 2: Convert to fraction form
    7,171.83/9,900.73 = 4,484.54/x
  3. Step 3: Cross multiply
    7,171.83x = 9,900.73 × 4,484.54
  4. Step 4: Simplify right side
    7,171.83x = 44,400,233.25
  5. Step 5: Solve for x
    x = 44,400,233.25/7,171.83
  6. Step 6: Final answer
    x = 6,190.92

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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.