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Finding the Fourth Proportional to 11,346.51, 17,019.21 and 3,448.68

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Solution

The fourth proportional to 11,346.51, 17,019.21 and 3,448.68 is: 5,172.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,346.51 : 17,019.21 = 3,448.68 : x
  2. Step 2: Convert to fraction form
    11,346.51/17,019.21 = 3,448.68/x
  3. Step 3: Cross multiply
    11,346.51x = 17,019.21 × 3,448.68
  4. Step 4: Simplify right side
    11,346.51x = 58,693,809.14
  5. Step 5: Solve for x
    x = 58,693,809.14/11,346.51
  6. Step 6: Final answer
    x = 5,172.85

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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.