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Finding the Fourth Proportional to 44,645.40, 66,978.33 and 19,349.17

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Solution

The fourth proportional to 44,645.40, 66,978.33 and 19,349.17 is: 29,028.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,645.40 : 66,978.33 = 19,349.17 : x
  2. Step 2: Convert to fraction form
    44,645.40/66,978.33 = 19,349.17/x
  3. Step 3: Cross multiply
    44,645.40x = 66,978.33 × 19,349.17
  4. Step 4: Simplify right side
    44,645.40x = 1,295,975,093.49
  5. Step 5: Solve for x
    x = 1,295,975,093.49/44,645.40
  6. Step 6: Final answer
    x = 29,028.19

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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.