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Finding the Fourth Proportional to 11,245.60, 16,854.90 and 6,556.60

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Solution

The fourth proportional to 11,245.60, 16,854.90 and 6,556.60 is: 9,827.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,245.60 : 16,854.90 = 6,556.60 : x
  2. Step 2: Convert to fraction form
    11,245.60/16,854.90 = 6,556.60/x
  3. Step 3: Cross multiply
    11,245.60x = 16,854.90 × 6,556.60
  4. Step 4: Simplify right side
    11,245.60x = 110,510,837.34
  5. Step 5: Solve for x
    x = 110,510,837.34/11,245.60
  6. Step 6: Final answer
    x = 9,827.03

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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.