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Finding the Fourth Proportional to 17,649.51, 26,475.18 and 7,788.88

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Solution

The fourth proportional to 17,649.51, 26,475.18 and 7,788.88 is: 11,683.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,649.51 : 26,475.18 = 7,788.88 : x
  2. Step 2: Convert to fraction form
    17,649.51/26,475.18 = 7,788.88/x
  3. Step 3: Cross multiply
    17,649.51x = 26,475.18 × 7,788.88
  4. Step 4: Simplify right side
    17,649.51x = 206,211,828.68
  5. Step 5: Solve for x
    x = 206,211,828.68/17,649.51
  6. Step 6: Final answer
    x = 11,683.71

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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.