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Finding the Fourth Proportional to 11,798.82, 17,708.34 and 6,861.60

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Solution

The fourth proportional to 11,798.82, 17,708.34 and 6,861.60 is: 10,298.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,798.82 : 17,708.34 = 6,861.60 : x
  2. Step 2: Convert to fraction form
    11,798.82/17,708.34 = 6,861.60/x
  3. Step 3: Cross multiply
    11,798.82x = 17,708.34 × 6,861.60
  4. Step 4: Simplify right side
    11,798.82x = 121,507,545.74
  5. Step 5: Solve for x
    x = 121,507,545.74/11,798.82
  6. Step 6: Final answer
    x = 10,298.28

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1.5x scale

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.