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Finding the Fourth Proportional to 20,697, 28,562.00 and 11,265.63

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Solution

The fourth proportional to 20,697, 28,562.00 and 11,265.63 is: 15,546.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,697 : 28,562.00 = 11,265.63 : x
  2. Step 2: Convert to fraction form
    20,697/28,562.00 = 11,265.63/x
  3. Step 3: Cross multiply
    20,697x = 28,562.00 × 11,265.63
  4. Step 4: Simplify right side
    20,697x = 321,768,867.73
  5. Step 5: Solve for x
    x = 321,768,867.73/20,697
  6. Step 6: Final answer
    x = 15,546.64

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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.