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Finding the Fourth Proportional to 3,859.11, 5,788.21 and 1,009.41

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Solution

The fourth proportional to 3,859.11, 5,788.21 and 1,009.41 is: 1,513.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,859.11 : 5,788.21 = 1,009.41 : x
  2. Step 2: Convert to fraction form
    3,859.11/5,788.21 = 1,009.41/x
  3. Step 3: Cross multiply
    3,859.11x = 5,788.21 × 1,009.41
  4. Step 4: Simplify right side
    3,859.11x = 5,842,643.07
  5. Step 5: Solve for x
    x = 5,842,643.07/3,859.11
  6. Step 6: Final answer
    x = 1,513.99

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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.