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Finding the Fourth Proportional to 9,649.56, 14,448.99 and 7,765.43

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Solution

The fourth proportional to 9,649.56, 14,448.99 and 7,765.43 is: 11,627.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,649.56 : 14,448.99 = 7,765.43 : x
  2. Step 2: Convert to fraction form
    9,649.56/14,448.99 = 7,765.43/x
  3. Step 3: Cross multiply
    9,649.56x = 14,448.99 × 7,765.43
  4. Step 4: Simplify right side
    9,649.56x = 112,202,620.42
  5. Step 5: Solve for x
    x = 112,202,620.42/9,649.56
  6. Step 6: Final answer
    x = 11,627.74

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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.