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Finding the Fourth Proportional to 11,597.76, 16,005.12 and 6,629.76

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Solution

The fourth proportional to 11,597.76, 16,005.12 and 6,629.76 is: 9,149.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,597.76 : 16,005.12 = 6,629.76 : x
  2. Step 2: Convert to fraction form
    11,597.76/16,005.12 = 6,629.76/x
  3. Step 3: Cross multiply
    11,597.76x = 16,005.12 × 6,629.76
  4. Step 4: Simplify right side
    11,597.76x = 106,110,104.37
  5. Step 5: Solve for x
    x = 106,110,104.37/11,597.76
  6. Step 6: Final answer
    x = 9,149.19

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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.