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Finding the Fourth Proportional to 6,369.58, 8,788.66 and 3,851.19

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Solution

The fourth proportional to 6,369.58, 8,788.66 and 3,851.19 is: 5,313.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,369.58 : 8,788.66 = 3,851.19 : x
  2. Step 2: Convert to fraction form
    6,369.58/8,788.66 = 3,851.19/x
  3. Step 3: Cross multiply
    6,369.58x = 8,788.66 × 3,851.19
  4. Step 4: Simplify right side
    6,369.58x = 33,846,799.51
  5. Step 5: Solve for x
    x = 33,846,799.51/6,369.58
  6. Step 6: Final answer
    x = 5,313.82

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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.