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Finding the Fourth Proportional to 8,167.05, 11,273.98 and 5,518.05

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Solution

The fourth proportional to 8,167.05, 11,273.98 and 5,518.05 is: 7,617.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,167.05 : 11,273.98 = 5,518.05 : x
  2. Step 2: Convert to fraction form
    8,167.05/11,273.98 = 5,518.05/x
  3. Step 3: Cross multiply
    8,167.05x = 11,273.98 × 5,518.05
  4. Step 4: Simplify right side
    8,167.05x = 62,210,399.13
  5. Step 5: Solve for x
    x = 62,210,399.13/8,167.05
  6. Step 6: Final answer
    x = 7,617.24

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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.