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Finding the Fourth Proportional to 10,888.60, 16,308.60 and 8,944.60

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Solution

The fourth proportional to 10,888.60, 16,308.60 and 8,944.60 is: 13,396.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,888.60 : 16,308.60 = 8,944.60 : x
  2. Step 2: Convert to fraction form
    10,888.60/16,308.60 = 8,944.60/x
  3. Step 3: Cross multiply
    10,888.60x = 16,308.60 × 8,944.60
  4. Step 4: Simplify right side
    10,888.60x = 145,873,903.56
  5. Step 5: Solve for x
    x = 145,873,903.56/10,888.60
  6. Step 6: Final answer
    x = 13,396.94

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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.