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Finding the Fourth Proportional to 8,499.96, 11,722.86 and 5,313.06

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Solution

The fourth proportional to 8,499.96, 11,722.86 and 5,313.06 is: 7,327.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,499.96 : 11,722.86 = 5,313.06 : x
  2. Step 2: Convert to fraction form
    8,499.96/11,722.86 = 5,313.06/x
  3. Step 3: Cross multiply
    8,499.96x = 11,722.86 × 5,313.06
  4. Step 4: Simplify right side
    8,499.96x = 62,284,258.55
  5. Step 5: Solve for x
    x = 62,284,258.55/8,499.96
  6. Step 6: Final answer
    x = 7,327.59

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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.